Welcome to Crash Course World History Office Hours! John Green and Cathy Keller answer your questions on the Russian Revolution, discuss the origin of nation states, and talk about the best way to approach studying history. Thank you to Flipgrid for sponsoring this series. Check them out here: https://info.flipgrid.com/ 00:00 Introduction 06:02 Causes and effects of the Russian revolution 15:55 Who was Genghis Khan and how was he able to get so much territory? 20:56 How did the Cold War start? 28:17 Kwame Nkrumah and Ghana in African decolonization and the Cold War 31:03 The differences between the Aztecs, Incas, and Mayans 36:09 Ataturk and the origin of nation-states 41:05 What's the best way to look back on history? 44:05 Tips for studying World History 48:24 Why didn't the silk road stretch all the way across Europe? 50:53 Favorite books on history 56:16 Outro Crash Course Study Skills: https://www.youtube.com/watch?v=IhuwS5ZLwKY *** Watch our videos and review your learning with the Crash Course App! Download here for Apple Devices: https://apple.co/3d4eyZo Download here for Android Devices: https://bit.ly/2SrDulJ Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: April Frazier, Dave Freeman, Hasan Jamal, DL Singfield, Lisa Owen, Jeremy Mysliwiec, Amelia Ryczek, Ken Davidian, Stephen Akuffo, Toni Miles, 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, Sam Ferguson, 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/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: null