CrashCourse

Epizode

• 
  What Can a Prophecy Tell Us About Climate Change?: Ep 24 of Crash Course Native American History 05.10.2026 14min

  What is Traditional Ecological Knowledge? And can it lead a path forward through climate change? In the final episode of Crash Course Native of American History, we’ll explore Native peoples’ expertise on the places they’ve lived for generations—and why it matters today.Introduction: Climate in Alaska 00:00Traditional Ecological Knowledge 0:36Controlled Burns 2:45Effects of Climate Change 4:29Environmental Justice 5:59Review & Credits 9:11Sources:https://docs.google.com/document/d/1g1BpQk_2qXtFeQBffoAT-rrogcKRaA2eNjeRCpmCrJ8/edit?usp=sharing Want to know more about how this series was made? Learn more here: https://docs.google.com/document/d/17yp3u28s40TdjyrJniIf4U9YA8wPtvQ1g1B-HSHQ2Q4/edit?tab=t.0#heading=h.6vtzps565m2***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, Dalton Williams, SpaceRangerWes, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, Bernardo Garza, team dorsey, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Evolutionary Development: Chicken Teeth - Crash Course Biology #17 05.10.2026 14min

  Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship and to discover how those processes evolved. Also, fruit flies with eyes on their legs and chickens with teeth!References:http://www.biomedcentral.com/1741-7007/5/47http://blog.hmns.org/?tag=evo-devohttp://www.pbs.org/wgbh/nova/evolution/what-evo-devo.htmlhttp://www.hoxfulmonsters.com/2008/05/setting-the-stage-for-hox-genes/http://evolution.berkeley.edu/evolibrary/article/evodevo_05http://lepdata.org/monteiro/Evo-devo%20pdfs/Halder_et_al_1995.pdfhttp://www.npr.org/templates/story/story.php?storyId=5230538Table of Contents1) EVO/DEVO - 00:512) Developmental Regulatory Genes - 2:003) Gap Genes - 2:394) Homeobox / HOX Genes - 2:505) Messed-Up Experiment - 6:166) EVO/DEVO & Evolution - 7:26a) Chickens with teeth - 8:14Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Ida B. Wells: Crash Course Black American History #20 05.10.2026 15min

  In this video, we'll learn about the life story of journalist, orator, teacher, suffragette, and anti-lynching activist Ida B. Wells-Barnett. Ida B. Wells made her name writing and speaking and working to improve the lives of Black Americans. She wrote for a number of outlets, and covered a wide array of issues. Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJSources and References Mia Bay, To Tell the Truth Freely: the Life of Ida B. Wells. New York: Hill and Wang, 2010.Paula Giddings, Ida: A Sword Among Lions. New York: Amistad, 2009.Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:Shannon McCone, Amelia Ryczek, Ken Davidian, Brian Zachariah, Stephen Akuffo, Toni Miles, Oscar Pinto-Reyes, Erin Nicole, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Vincent, Michael Wang, Stacey Gillespie, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, neil matatall, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Justin, Jessica Wode, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseTumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourseCC Kids: http://www.youtube.com/crashcoursekids#crashcourse #BlackHistory #IdaBWells Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  How close is the worst case scenario?: Crash Course Futures of AI #3 05.10.2026 16min

  Way back in the 1930s, Alan Turing gave us a glimpse of the power of computers with a hypothetical machine that, he said, could solve any computable problem. But that was nonsense…right?Well thanks to recursive progress, maybe not. In this episode, we’ll explore how humans (and computers) make progress, and try to find out just how powerful AI could become. About This Series:AI is changing FAST so rather than doing a full Crash Course series of 12+ episodes, we’ve prepared a mini-series of just the basics. Crash Course will never tell you what to think and we’re not the type of organization that responds to breaking news in real time. Instead, we’re here to offer a zoomed-out foundation upon which to base your own opinions as you continue to learn from other outlets about the world that’s changing around us.Crash Course: Futures of AI will cover:-What even is AI? What’s the history of this thing and how quickly has it evolved to what exists today?-How could AI transform society? Will AI cause the next Industrial Revolution, and what might that mean for workers and the environment?-How powerful could AI become? How do we measure the progression of AI? What are the consequences we’re already seeing, and what might be the future consequences of unchecked AI development?-How might powerful AI cause harm? We’ll touch on copyright infringement, misinformation, surveillance, authoritarianism, and (unfortunately,) more. -How could AI be governed? What are the potential approaches for controlling AI both nationally and internationally?P.S. Wondering if we used AI to create this series? Nope! Every Complexly video is lovingly, painstakingly human-made.Intro 00:00Chapter 1: Progress is recursive 00:57Chapter 2: Google AlphaEvolve 02:08Chapter 3: Superintelligence 06:58Chapter 4: How close are we to superintelligence /actually/? 9:53Conclusion 11:50Sources: https://docs.google.com/document/d/16br0e73KFVD5qu-VEBV40yQTpBiX0l65EgWQ6Q7Fz-k/edit?usp=sharing***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, Dalton Williams, SpaceRangerWes, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, Bernardo Garza, team dorsey, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/ Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  CrashCourse Biology Outtakes with Hank Green 05.10.2026 7min

  Hank makes mistakes. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/ Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Life under a dictatorship: Crash Course Latin American Literature #5 05.10.2026 16min

  How do you honor the memory of something… that you don’t fully remember? In this episode of Crash Course Latin American Literature, we’ll explore how writers who grew up in the shadow of dictatorships, civil war, and armed conflicts wrestle with the memory of violence, and the challenges of memory itself.Introduction: Being a Kid 00:00Literatura de los Hijos 0:54"Formas de volver a casa" 1:51Félix Bruzzone 4:18"Roza, tumba, quema" 5:57"La sangre de la aurora" 8:21Review & Credits 10:47Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edit?tab=t.0To learn more, check out these videos:Geopolitical history of Latin America: War and Nation Building in Latin America: Crash Course World History 225 https://youtu.be/v6xi8_7Fy6Y?si=paRg7m_G3tMAX4vW , Latin American Revolutions: Crash Course World History #31 https://youtu.be/ZBw35Ze3bg8?si=P4HnEqr1_rEP2YGv***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, Dalton Williams, SpaceRangerWes, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, Bernardo Garza, team dorsey, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Outtakes #4: Crash Course Psychology 05.10.2026 6min

  In this episode of Crash Course Psychology, Hank has trouble saying the words and posits a world in which he can be hypnotized to forget things just so he can enjoy them all over again. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Wait For It...The Mongols!: Crash Course World History #17 05.10.2026 15min

  In which John Green teaches you, at long last, about the most exceptional bunch of empire-building nomads in the history of the world, the Mongols! How did the Mongols go from being a relatively small band of herders who occasionally engaged in some light hunting-gathering to being one of the most formidable fighting forces in the world? It turns out Genghis Khan was a pretty big part of it, but you probably already knew that. The more interesting questions might be, what kind of rulers were they, and what effect did their empire have on the world we know today? Find out, as John FINALLY teaches you about the Mongols.Chapters:Introduction: Wait for it...The Mongols! 00:00What does it mean to be a nomad? 1:13Genghis Khan 2:39An Open Letter to Genghis Khan's Descendants 4:45The Mongols After Genghis Khan 5:30Five Reasons the Mongols Were Awesome 6:54Five Reasons the Mongols Weren't Awesome 8:30Credits 10:34Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  The Alignment Problem Explained: Crash Course Futures of AI #4 04.10.2026 16min

  Could a robot dedicated to a good cause end up destroying the world? Well, maybe. In this episode, we explore how powerful AI could end up causing us harm, regardless of what it’s programmed for. Between misuse by humans, alignment problems, and instrumental goals, even AI built with good intentions could end up breaking bad…unless we do something about it. About This Series:AI is changing FAST so rather than doing a full Crash Course series of 12+ episodes, we’ve prepared a mini-series of just the basics. Crash Course will never tell you what to think and we’re not the type of organization that responds to breaking news in real time. Instead, we’re here to offer a zoomed-out foundation upon which to base your own opinions as you continue to learn from other outlets about the world that’s changing around us.Crash Course: Futures of AI will cover:-What even is AI? What’s the history of this thing and how quickly has it evolved to what exists today?-How could AI transform society? Will AI cause the next Industrial Revolution, and what might that mean for workers and the environment?-How powerful could AI become? How do we measure the progression of AI? What are the consequences we’re already seeing, and what might be the future consequences of unchecked AI development?-How might powerful AI cause harm? We’ll touch on copyright infringement, misinformation, surveillance, authoritarianism, and (unfortunately,) more. -How could AI be governed? What are the potential approaches for controlling AI both nationally and internationally?P.S. Wondering if we used AI to create this series? Nope! Every Complexly video is lovingly, painstakingly human-made.Intro 00:00Chapter 1: How powerful AI systems can be misused 1:46Chapter 2: Misalignment in advanced AI systems 3:36Chapter 3: How instrumental goals could lead to rogue AI 6:43Chapter 4: The case for the precautionary principle 9:30Conclusion 11:49Sources: https://docs.google.com/document/d/16br0e73KFVD5qu-VEBV40yQTpBiX0l65EgWQ6Q7Fz-k/edit?usp=sharing***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, SpaceRangerWes, Dalton Williams, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Reed Spilmann, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.fac Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Outtakes #1: Crash Course Astronomy 04.10.2026 5min

  After 10 information-heavy episodes, it's time for a little Bad Astronomy.Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster--PBS Digital Studios: http://youtube.com/pbsdigitalstudiosFollow Phil on Twitter: https://twitter.com/badastronomerCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Animal Development: We're Just Tubes - Crash Course Biology #16 04.10.2026 15min

  Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes.Table of Contents1) Zygote 2:382) Morula 2:533) Blastula 3:254) Radial Symmetry 4:115) Bilateral Symmetry 4:266) Gastrulation 4:527) Blastopore 5:028) Gastrula 5:179) Protostomes & Deuterostomes 5:3310) Germ Layers 6:22a) Diploblastic 6:32b) Triploblastic 6:4411) Biolography 7:27Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Horror in Latin American literature: Crash Course Latin American Literature #6 04.10.2026 13min

  Are you afraid of ghosts? In this episode of Crash Course Latin American Literature, we pull back the curtain on the origins of Latin American horror, winding our way through (literal) ghost towns, haunted inns, and the eerie landscape of the Andes. Prepare to be spooked.Introduction: A Ghost Story 00:00Ghosts in Latin America 0:37Pedro Páramo 1:22The Female Gothic 4:54Andean Gothic 6:51The New Boom? 8:25Review and Credits 9:16Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edit?tab=t.0To learn more, check out these videos:Geopolitical history of Latin America: War and Nation Building in Latin America: Crash Course World History 225 https://youtu.be/v6xi8_7Fy6Y?si=paRg7m_G3tMAX4vW , Latin American Revolutions: Crash Course World History #31 https://youtu.be/ZBw35Ze3bg8?si=P4HnEqr1_rEP2YGvGhosts & Religion: Religion, Spirituality, and the Supernatural: Crash Course Religions #18 https://youtu.be/Y-YbgGYsHig?si=Lkq-vGNfkyuDYe3Y, Confucianism, Buddhism, and Daoism: Chinese Popular Religion https://youtu.be/JJ7fTJb6RHc?si=WmGBwurHb6MRlyJeOne Hundred Years of Solitude: 100 Years of Solitude Part 1: Crash Course Literature 306 https://youtu.be/YWNcCs__vQg?si=69kPZVKUib4XnYmK , 100 Years of Solitude Part 2: Crash Course Literature 307 https://www.youtube.com/watch?v=Hlpv7nKt81A“Facundo”: Latin American Lit 4 https://youtu.be/Nh4I1hMvubU, The Andes Mountains: How do we Classify Climates? Crash Course Geography #13 https://youtu.be/xiGhLGFkJjo?si=_nPvWWfcfIIiaNJ4***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, Dalton Williams, SpaceRangerWes, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, Bernardo Garza, team dorsey, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Mansa Musa and Islam in Africa: Crash Course World History #16 04.10.2026 13min

  In which John Green teaches you about Sub-Saharan Africa! So, what exactly was going on there? It turns out, it was a lot of trade, converting to Islam, visits from Ibn Battuta, trade, beautiful women, trade, some impressive architecture, and several empires. John not only covers the West African Malian Empire, which is the one Mansa Musa ruled, but he also discusses the Ghanian Empire and even gets over to East Africa as well to discuss the trade-based city-states of Mogadishu, Mombasa, and Zanzibar. In addition to all this, John considers emigrating to Canada.Chapters:Introduction: African History 00:00King Mansa Musa of Mali 1:22Mali, the Berbers, and the Islamization of West Africa 3:23An Open Letter to Ibn Battula 5:29The End of the Malian Empire 6:17The Swahili Civilizations of Eastern Africa 6:55Credits 9:56Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Emmett Till: Crash Course Black American History #34 04.10.2026 15min

  In 1955, a 14-year-old boy named Emmett Till was brutally murdered in Money, Mississippi. The white men who murdered him killed him for being Black. Emmett Till's mother chose to have an open casket funeral, and show the world what had been done to her son. Despite the killers being acquitted in court, the story of Emmett Till and the jarring images of his funeral shocked the nation and were a vital catalyst in turning the civil rights movement into a nationwide phenomenon.Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935VIDEO SOURCESTimothy B. Tyson, The Blood of Emmett Till (New York: Simon & Schuster, 2018).Charles Payne, I’ve Got the Light of Freedom: The Organizing Tradition and the Mississippi Freedom Struggle (University of California Press, 2007). Onwuachi-Willig, Angela. “The Trauma of the Routine: Lessons on Cultural Trauma from the Emmett Till Verdict.” Sociological Theory 34, no. 4 (December 2016): 335–57. https://doi.org/10.1177/0735275116679864.https://www.britannica.com/topic/Chicago-Defenderhttps://nmaahc.si.edu/blog-post/emmett-Tills-death-inspired-movementsmithsonianmag.com/arts-culture/emmett-Tills-casket-goes-to-the-smithsonian-144696940/#:~:text=Till's%20murder%20became%20a%20rallying,African%20American%20History%20and%20Culture.https://www.nypl.org/collections/articles-databases/jet-magazinehttps://www.jetmag.com/news/jet-65th-anniversary/https://wamu.org/story/18/10/30/let-the-people-see-it-took-courage-to-keep-emmett-Tills-memory-alive/Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, Erin Switzer, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel Stevens, Vincent, Michael Wang, Stacey Gillespie (Stacey J), Alexis B, Burt Humburg, Aziz Y, Shanta, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Rachel Creager, Breanna Bosso, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer, Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, ClareG, Rizwan Kassim, Alex Hackman, Jirat, Katie Dean, Avi Yashchin, NileMatotle, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseTumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourseCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  How Should AI Be Governed?: Crash Course Futures of AI #5 04.10.2026 16min

  The future of AI is maybe beautiful, maybe scary, and definitely uncertain. But we do have a say in how it rolls out. From lab policies to international treaties, people all over the world are trying to figure out how to build and use AI in safe, responsible ways. But when the stakes are so high, can humanity really come together and keep AI under control? Chapter 1: Sam Altman & OpenAI 00:00Chapter 2: Lab-level AI governance 1:13Chapter 3: National AI Governance 5:07Chapter 4: International AI Governance 8:40Chapter 5: Review & Credits: 10:48About This Series:AI is changing FAST so rather than doing a full Crash Course series of 12+ episodes, we’ve prepared a mini-series of just the basics. Crash Course will never tell you what to think and we’re not the type of organization that responds to breaking news in real time. Instead, we’re here to offer a zoomed-out foundation upon which to base your own opinions as you continue to learn from other outlets about the world that’s changing around us.Crash Course: Futures of AI will cover:-What even is AI? What’s the history of this thing and how quickly has it evolved to what exists today?-How could AI transform society? Will AI cause the next Industrial Revolution, and what might that mean for workers and the environment?-How powerful could AI become? How do we measure the progression of AI? What are the consequences we’re already seeing, and what might be the future consequences of unchecked AI development?-How might powerful AI cause harm? We’ll touch on copyright infringement, misinformation, surveillance, authoritarianism, and (unfortunately,) more. -How could AI be governed? What are the potential approaches for controlling AI both nationally and internationally?P.S. Wondering if we used AI to create this series? Nope! Every Complexly video is lovingly, painstakingly human-made.***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, SpaceRangerWes, Dalton Williams, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Reed Spilmann, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  How Do We Know We're Sick? Crash Course Outbreak Science #6 04.10.2026 15min

  Sometimes, diagnosing patients is pretty easy, but other times... not so much. Luckily, in a medical setting we have tools that can help us figure out what's wrong with patients, and how to help them. In this episode of Crash Course Outbreak Science, we'll use clinical symptomatology and diagnostic testing to collect data and test our hypotheses about what may be wrong with some hypothetical patients, and use what we learn to help our patients get better and stop the disease from spreading to more people.This episode of Crash Course Outbreak Science was produced by Complexly in partnership with Operation Outbreak and the Sabeti Lab at the Broad Institute of MIT and Harvard—with generous support from the Gordon and Betty Moore Foundation.Sources:Chapters 5 and 6 from the Operation Outbreak textbook (as provided by Todd Brown)https://www.sciencedirect.com/science/article/pii/S1386653216000408***Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZoDownload here for Android Devices: https://bit.ly/2SrDulJCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:Shannon McCone, Amelia Ryczek, Ken Davidian, Brian Zachariah, Stephen Akuffo, Toni Miles, Oscar Pinto-Reyes, Erin Nicole, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Vincent, Michael Wang, Stacey Gillespie, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie Dean, neil matatall, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Justin, Jessica Wode, Mark, Caleb Weeks__Want to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseTumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourseCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Crash Course World History Outtakes 04.10.2026 6min

  In which John is a dirty, dirty boy. Hilarious. Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/ Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Borders and Identity: Crash Course Latin American Literature #7 04.10.2026 13min

  Where you are affects WHO you are. But what happens when you cross a border? In this episode of Crash Course Latin American Literature, we’ll explore how exile and border crossings have inspired Latin American authors to cross literary borders, too.Introduction: Borders 00:00Julio Cortázar 0:41Chicanas & Gloria Anzaldúa 4:03Yuri Herrera 6:54Review & Credits 9:07Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edit?tab=t.0To learn more, check out these videos:https://youtu.be/CgaZGbzFK1s?si=m1iUUW_yL8d2axmmhttps://youtu.be/v6xi8_7Fy6Y?si=PH_2g3yFvT6XhtW4https://youtu.be/Wg9FWxpZeJ8?si=WqgiBPyiOI8vKQfQ&t=454https://youtu.be/5Z55k7CqZ0c?si=e4AByR_FGzxoXakIhttps://www.youtube.com/playlist?list=PL8dPuuaLjXtNCG9Vq7vdvJytS-F-xGi7_Check out our CC Latin America Extra Curricular Playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPTzMxnHVWhrV8dUZM0qL34 ***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, SpaceRangerWes, Dalton Williams, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Reed Spilmann, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  Speciation: Of Ligers and Men - Crash Course Biology #15 04.10.2026 13min

  Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs.Table of Contents1) Species 0:302) Hybrids 1:523) Reproductive Isolation 2:48a) Post-Zygotic 3:31b) Pre-Zygotic 3:514) Allopatric Speciation 4:235) Sympatric Speciation 6:036) Biolography 6:327) Dogs 8:37This video contains the following sounds from Freesound.org:"bird tweet.aif" by tigersound"ForestBirds.wav" by HerbertBoland"morning_in_the_forest_2007_04_15.wav" by reinsamba"AMBIENT LOOP - Perfectly Clear - Wilderness Hillside - FILTERED.mp3" by Arctura"oceanwavescrushing.wav" by LuftrumCrash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourseWant to find Crash Course elsewhere on the internet?Facebook - http://www.facebook.com/YouTubeCrashCourseTwitter - http://www.twitter.com/TheCrashCourseInstagram - https://www.instagram.com/thecrashcourse/CC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices
• 
  The Hidden Politics of Home: Crash Course Latin American Literature #8 04.10.2026 12min

  Houses and homes occupy a lot of space in Latin American literature. In this episode of Crash Course Latin American Literature, we make room for all the ways that our homes can represent who we are. Introduction: Home 00:00"The House on Mango Street" 0:23"La Casa de los Espíritus" 3:06"Las Malas" 6:42Review & Credits 8:26Sources: https://docs.google.com/document/d/1eE7g4-k6PD7C6wNBzeJIO8GCDHpoJl8ldDjKyq_2yYg/edit?tab=t.0To learn more, check out these videos:https://www.youtube.com/watch?v=Nh4I1hMvubU https://www.youtube.com/watch?v=Yb1_4FPtzrI https://www.youtube.com/watch?v=1mVuM6OeT7whttps://youtu.be/v6xi8_7Fy6Y?si=PH_2g3yFvT6XhtW4https://youtu.be/yaeiCEro0iU?si=pmF-KqcG7NzRyk1xhttps://youtu.be/evUZ0MGseJY?si=Up3IjM1oZssSHE1_Check out our CC Latin America Extra Curricular Playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPTzMxnHVWhrV8dUZM0qL34 ***Support us for $5/month on Patreon to keep Crash Course free for everyone forever! https://www.patreon.com/crashcourseOr support us directly: https://complexly.com/supportJoin our Crash Course email list to get the latest news and highlights: https://mailchi.mp/crashcourse/emailGet our special Crash Course Educators newsletter: http://eepurl.com/iBgMhYThanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:DexcilaDou, Martin G. Diller, Johnathan Williams, Allison Wood, EllenBryn, Katrix , Jason Terpstra, Evan Nelson, Jennifer Wiggins-Lyndall, SpaceRangerWes, Dalton Williams, Chelsea S, Thomas Sully, Matthew Fredericksen, AThirstyPhilosopher ., Michael Maher, Mitch Gresko, Gina Mancuso, Roger Harms, Shruti S, Quinn Harden, Reed Spilmann, Brandon Thomas, Emily Beazley, Rie Ohta, oranjeez, UwU, Elizabeth LaBelle, Leah H., David Fanska, Andrew Woods, Katie Hoban, Kevin Knupp, Barbara Pettersen, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Tanner Hedrick, Kristina D Knight, Samantha, Krystle Young, Perry Joyce, Scott Harrison, Alan Bridgeman, Breanna Bosso, Matt Curls, Liz Wdow, Jennifer Killen, Duncan W Moore IV, Sarah & Nathan Catchings, team dorsey, Bernardo Garza, Trevin Beattie, Pietro Gagliardi, John Lee, Eric Koslow, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Barrett, Les Aker, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Triad Terrace, Katie Dean, Jason Buster, Emily T, Stephen McCandless, Thomas, Joseph Ruf, Wai Jack Sin, Ian Dundore, Erminio Di Lodovico, Evol Hong, Tandy Ratliff, Caleb Weeks, Luke Sluder__Want to find Crash Course elsewhere on the internet?Instagram - https://www.instagram.com/thecrashcourse/Facebook - http://www.facebook.com/YouTubeCrashCourseBluesky - https://bsky.app/profile/thecrashcourse.bsky.socialCC Kids: http://www.youtube.com/crashcoursekids Learn more about your ad choices. Visit megaphone.fm/adchoices