Today, we’re going to take a closer look at borders and the stories they tell. When we look at a map, the shapes we’re seeing can seem so permanent, but a map is just a snapshot of the Earth at a particular time, and by looking a countries shape (and how it has changed across time) we can learn so much about how power moves and the ebb and flow of conflict. We’ll talk about the different types of borders, and power dynamics at play in Armenia and Azerbaijan and even look to the oceans as we explore conflict in the South China Sea.

SOURCES

General

CIA Factbook: https://www.cia.gov/library/pu....blications/resources
Getis, Bjelland, and Getis. Introduction to Geography, 15 ed. McGraw-Hill Education. 2017. ISBN: 978-1-259-57000-1
Gregory, Derek, Ron Johnston, Geraldine Pratt, Michael Watts, and Sarah Whatmore, eds. 2009. The Dictionary of Human Geography. 5th ed. Willey-Blackwell. ISBN: 978-1-4051-3288-6
For a free and open source option for Intro to Human Geography, see:
https://humangeography.pressbooks.com/
For a free and open source option for World Regional Geography, see:
https://worldgeography.pressbo....oks.com/front-matter
Cracking the AP Human Geography Exam: 2020 edition. The Princeton Review.
https://www.cia.gov/the-world-....factbook/field/dispu

South China Sea

https://www.nytimes.com/2016/0....7/15/world/asia/sout
https://www.cfr.org/global-con....flict-tracker/confli
https://en.wikipedia.org/wiki/South_China_Sea

Armenian/Azerbaijan Conflicts

https://www.youtube.com/watch?v=YU2v38hRRbg
https://www.cia.gov/the-world-....factbook/countries/a
https://www.cia.gov/the-world-....factbook/countries/a
https://pulitzercenter.org/sto....ries/how-azerbaijan-
https://www.mei.edu/publicatio....ns/diplomacy-attriti
https://www.bbc.com/travel/art....icle/20200721-nakhch
https://en.wikipedia.org/wiki/....Nakhchivan_Autonomou
https://www.youtube.com/watch?v=YU2v38hRRbg

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#CrashCourse #Geography #Borders

In which John Green teaches you about the beginnings of the American Revolution in a video titled The Seven Years War. Confusing? Maybe. John argues that the Seven Years' War, which is often called the French and Indian War in the US, laid a lot of the groundwork for the Revolution. More confusing? Why does this war have two names? Why were the French and Indians fighting each other? The Seven Years' war was actually a global war that went on for nine years. I think I'm having trouble making this clear. Anyway, the part of this global war that happened in North America was the French and Indian War. The French and Indian tribes were the force opposing the British, so that's the name that stuck. Let's get away from this war, as it makes my head hurt. Other stuff was going on in the colonies in the 18th century that primed the people for revolution. One was the Great Awakening. A religious revival was sweeping the country, introducing new ideas about religion and how it should be practiced. At the same time, thinkers like John Locke were rethinking the relationship between rulers and the ruled. So in this highly charged atmosphere, you can just imagine what would happen if the crown started trying to exert more control over the colonies. The colonists would probably just rise up, right? We'll see what happens next week.

Read the Mystery Document in its entirety in the Minutes of the Provincial Province of Pennsylvania Vol. IX: https://bit.ly/3jxHcrc

Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. Learn about how the European struggle for dominance throughout the French and Indian War impacted natives in North America: https://www.commonlit.org/text....s/french-and-indian-

Still curious? Watch this other Crash Course video!
The Seven Years War: Crash Course World History #26 https://www.youtube.com/watch?v=j0qbzNHmfW0


Chapters:
Introduction: The Seven Years War 00:00
Causes of the Seven Years War 0:32
Mercantilism in the American Colonies 1:14
Slave Labor in the American Colonies 1:46
French vs British Tensions Rise 2:09
The Battles of the Seven Years War 3:27
Outcomes of the Seven Years War 4:43
Mystery Document 5:35
Pontiac's Rebellion and the Proclamation Line 6:57
Republicanism & Liberalism in the American Colonies 7:42
The Great Awakening 8:37
Anti-Authority Sentiments in the American Colonies 9:44
Credits 10:11

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Today we're going to take a closer look at ecosystems -- which are communities of living organisms in an area interacting with their environment -- and how this relationship between the amount of energy a place receives and the movement of nutrients is what makes the incredible diversity of life possible. We'll also take a look at the patterns we see in the main global biomes, show you why some biomes (like tropical rainforests) are so productive, and discuss an agricultural practice some farmers have employed to help preserve their local ecosystems.

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#CrashCourse #Geography #Ecosystems

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Last week, we met the Presocratics: despite having by any reasonable standard invented science in Europe, these thinkers are lumped together today as simply “not Socrates.”
So who was this smarty pants? In this episode Hank talks to us about Socrates and his two important students, Plato and Aristotle.

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Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.

"Concert" music used with permission from Chameleon Circuit.
This video uses sounds from Freesound.org

Table of Contents time codes:
1) Passive Transport - 1:17
2) Diffusion - 1:25
3) Osmosis - 2:12
4) Channel Proteins- 4:37
5) Active Transport - 4:58
6) ATP - 5:37
7) Transport Proteins - 6:19
8) Biolography - 6:37
9) Vesicular Transport - 9:02
10) Exocytosis - 9:21
11) Endocytosis - 9:50
12) Phagocytosis - 9:57
13) Pinocytosis - 10:29
14) Receptor-Mediated Endocytosis - 10:48

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So, during times of inflation or deflation, why doesn't the government just set prices? It sounds reasonable, but price ceilings or floors just don't work. Adriene and Jacob explain why. Subsidies, however, are a little different, and sometimes they even work. We'll also explain that. Today you'll learn about stuff like price controls, deadweight loss, subsidies, and efficiency.

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This week Jacob and Adriene teach you about marginal analysis, which you're using RIGHT NOW! The video is coming from inside the house! Or something. You'll learn how marginal analysis guides the decision making if cities, nations, companies, and amusement park enthusiasts. We'll also look at the idea of elasticity, and what people are willing to pay for certain stuff based on the supply. Why is a Van Gogh worth more than an OBEY poster? (hint: it's because they're still cranking out the OBEY posters, and Vincent is dead) All this and more on Crash Course Economics!

***

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Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells.

References:
http://www.nature.com/nature/dna50/watsoncrick.pdf
http://publications.nigms.nih.....gov/thenewgenetics/c
http://rst.gsfc.nasa.gov/Sect20/A12.html
http://www.nature.com/scitable..../topicpage/discovery
http://www.uic.edu/classes/phy....s/phys461/phys450/AN
http://www.buzzle.com/articles..../dna-replication-ste
http://www.dnareplication.info..../stepsofdnareplicati
http://salamandercandy.wordpre....ss.com/2007/02/05/ho
http://www.sdsc.edu/ScienceWomen/franklin.html
http://www.fmi.ch/members/mari....lyn.vaccaro/ewww/dna
http://www.strangescience.net/rfranklin.htm

1:41 link to Biological Molecules http://www.youtube.com/watch?v=H8WJ2KENlK0

Table of Contents:
1) Nucleic Acids 1:30
2) DNA
-A) Polymers 1:53
-B) Three Ingredients 2:12
-C) Base Pairs 3:45
-D) Base Sequences 4:13
3) Pop Quiz 5:07
4) RNA 5:36
-A) Three Differences from DNA 5:43
5) Biolography 6:16
6) Replication 8:49
-A) Helicase and Unzipping 9:22
-B) Leading Strand 9:38
-C) DNA Polymerase 10:08
-D) RNA Primase 10:24
-E) Lagging Strand 10:46
-F) Okazaki Fragments 11:07
-F) DNA Ligase 11:47

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We’ve talked about how broad a concept “the media” really is – and given that, it can be hard to keep track of all the different forces that constitute “the media.” It can be tough, but it’s not impossible. Today we’re talking about how all those big players fit together and why all those mergers and acquisitions matter to being a media literate citizen.

***

Resources:
NEW ERA FOR THE TELEPHONE: OWNERSHIP REPLACING RENTAL https://www.nytimes.com/1982/1....2/16/business/new-er

AT&T BREAKUP II : Highlights in the History of a Telecommunications Giant http://articles.latimes.com/19....95-09-21/business/fi

BELL SYSTEM BREAKUP OPENS ERA OF GREAT EXPECTATIONS AND GREAT CONCERN https://www.nytimes.com/1984/0....1/01/us/bell-system-

The Federal Communications Commission and the Bell System: Abdication of Regulatory Responsibility https://www.repository.law.indiana.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=2509&context=ilj

The Knight Foundation: How Youth Navigate the News Landscape https://knightfoundation.org/r....eports/how-youth-nav

Experimental evidence of massive-scale emotional contagion through social networks http://www.pnas.org/content/111/24/8788.full

Facebook and Twitter are being used to manipulate public opinion https://www.theguardian.com/te....chnology/2017/jun/19

***

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In this episode of Crash Course Psychology, we get to meet the brain. Hank talks us through the Central Nervous System, the ancestral structures of the brain, the limbic system, and new structures of the brain. Plus, what does Phineas Gage have to do with all of this?

Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych!
--
Chapters:
Introduction: Phrenology 00:00
Localized Parts of the Brain Control Different Functions 1:01
Basics of the Central Nervous System 2:15
The Curious Case of Phineas Gage 2:50
Brain Structures 5:15
Ancestral Structures of the Brain 5:37
"Old Brain" - Brain Stem, Medulla, Pons, Thalamus, Reticular Formation, Cerebellum 6:17
Limbic System - Amygdala, Hypothalamus, Hippocampus, Pituitary Gland 7:31
Gray Matter & Brain Hemispheres 8:32
Cerebral Cortex 9:31
Frontal, Parietal, Occipital, and Temporal Lobes 10:06
Specialized Regions: Motor Cortex, Somatosensory Cortex, & Association Areas 10:32
Review & Credits 11:39
--

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Today, we're going to take a closer look at how the oceans circulate by following the life of a discarded water bottle as it gets snagged in the North Pacific Garbage Patch. We'll talk about what causes the movement of water, called current, both near the surface and much deeper in the oceans, and we'll show how they follow similar (but not identical) paths to the winds. Ocean circulation plays a huge role in cycling vital nutrients within the seas and helps us transport goods on ships across the globe and it's up to us to protect it.

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#CrashCourse #Geography #Oceans

How does education work? Where does the money come from? Who pays for it? Is going to college a good investment? Adriene and Jacob are talking today about the economics of education. Most countries require that their citizens get some education, and most countries pay for basic education, but the quality of education can vary widely. And in the US, post-secondary education can come with a lot of costs.

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--

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In which John Green teaches you WHY World War I started. Or tries to anyway. With this kind of thing, it's kind of hard to assign blame to any one of the nations involved. Did the fault lie with Austria-Hungary? Germany? Russia? Julius Caesar? One thing we can say for sure is that you can't blame the United States of America for this one. Woohoo! Well, you can hardly blame the US.

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Despite all the hardship of being a Black person in Colonial America, some Black people were able to defy the harsh conditions and create art. Today we're learning about a teenager who attained literacy and wrote poems that reached a large slice of the population and helped changed the ways that white Colonists thought about Black people.

Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935

VIDEO SOURCES

Catherine Adams and Elizabeth H. Pleck, Love of Freedom: Black Women in Colonial and Revolutionary New England (Oxford: Oxford University Press, 2010).
Vincent Carretta, Phillis Wheatley: Biography of a Genius in Bondage (Athens: University of Georgia Press, 2011).
Woody Holton, Black Americans in the Revolutionary Era: A Brief History with Documents (New York: St. Martin’s Press, 2009).
·Winthrop D. Jordan, White Over Black: American Attitudes Toward the Negro, 1550-1812 (Chapel Hill: Omohundro Institute of Early American History and Culture, 1969).
Jessica M. Parr, Inventing George Whitefield: Race, Revivalism, and the Making of a Religious Icon (Jackson: University Press of Mississippi Press, 2015).
THE BAD-ASS LIBRARIANS OF TIMBUKTU, (2017), https://www.simonandschuster.c....om/books/The-Bad-Ass (last visited Oct 14, 2020).
ORAL EPICS FROM AFRICA :VIBRANT VOICES FROM A VAST CONTINENT /, (c1997), http://hdl.handle.net/2027/uc1.32106014509043.
Claude Sumner, The Light and the Shadow: Zera Yacob and Walda Heywat: Two Ethiopian Philosophers of the Seventeenth Century 172–182 (2005).
On the Death of George Whitefield by Phillis Wheatley Analysis & Poem, , POEM OF QUOTES: READ, WRITE, LEARN , https://www.poemofquotes.com/p....hilliswheatley/on-th (last visited Oct 22, 2020).
Waddill v. Chamberlayne, 1735 Va. LEXIS 3 (Apr. 1, 1735).


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

VIDEO SOURCES

-Catherine Adams and Elizabeth H. Pleck, Love of Freedom: Black Women in Colonial and Revolutionary New England (Oxford: Oxford University Press, 2010).
-Vincent Carretta, Phillis Wheatley: Biography of a Genius in Bondage (Athens: University of Georgia Press, 2011).
-Woody Holton, Black Americans in the Revolutionary Era: A Brief History with Documents (New York: St. Martin’s Press, 2009).
·-Winthrop D. Jordan, White Over Black: American Attitudes Toward the Negro, 1550-1812 (Chapel Hill: Omohundro Institute of Early American History and Culture, 1969).
-Jessica M. Parr, Inventing George Whitefield: Race, Revivalism, and the Making of a Religious Icon (Jackson: University Press of Mississippi Press, 2015).
-THE BAD-ASS LIBRARIANS OF TIMBUKTU, (2017), https://www.simonandschuster.c....om/books/The-Bad-Ass (last visited Oct 14, 2020).
ORAL EPICS FROM AFRICA :VIBRANT VOICES FROM A VAST CONTINENT /, (c1997), http://hdl.handle.net/2027/uc1.32106014509043.
-Claude Sumner, The Light and the Shadow: Zera Yacob and Walda Heywat: Two Ethiopian Philosophers of the Seventeenth Century 172–182 (2005).
-On the Death of George Whitefield by Phillis Wheatley Analysis & Poem, , POEM OF QUOTES: READ, WRITE, LEARN , https://www.poemofquotes.com/p....hilliswheatley/on-th (last visited Oct 22, 2020).
-Waddill v. Chamberlayne, 1735 Va. LEXIS 3 (Apr. 1, 1735).


Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, 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, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, Sam Ferguson, Eric Prestemon, Jirat, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
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#crashcourse #history #philliswheatley

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! 00:00
What does it mean to be a nomad? 1:13
Genghis Khan 2:39
An Open Letter to Genghis Khan's Descendants 4:45
The Mongols After Genghis Khan 5:30
Five Reasons the Mongols Were Awesome 6:54
Five Reasons the Mongols Weren't Awesome 8:30
Credits 10:34

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You may think you know all about hypnosis from the movies. Zoolander, The Manchurian Candidate, etc... but there's a whole lot more going on. In this episode of Crash Course Psychology, Hank tells us about some of the many altered states of consciousness, including hypnosis.

Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych

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Chapters:
Introduction: Hypnosis & Altered States of Consciousness 00:00
Facts & Fallacies About Hypnosis 2:00
How does hypnosis work? 3:05
Drug Tolerance & Neuroadaptation 4:49
Psychoactive Drugs 5:51
Depressants 6:28
Stimulants 7:35
Hallucinogens/Psychedelics 9:04
Non-Drug Induced Hallucinations 9:33
Review & Credits 10:32
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In which Hank does some push-ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP.

Special thanks go to Stafford Fitness (www.staffordfitness.net) for allowing us to shoot the gym scenes in their facilities.

This video uses sounds from Freesound.org

Table of Contents:
1) Cellular Respiration 01:00
2) Adenosine Triphosphate 01:29
3) Glycolysis 4:13
A) Pyruvate Molecules 5:00
B) Anaerobic Respiration/Fermentation 5:33
C) Aerobic Respiration 6:45
4) Krebs Cycle 7:06
A) Acetyl COA 7:38
B) Oxaloacetic Acid 8:21
C) Biolography: Hans Krebs 8:37
D) NAD/FAD 9:48
5) Electron Transport Chain 10:55
6) Check the Math 12:33

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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Today we’re rounding out our planetary tour with ice giants Uranus and Neptune. Both have small rocky cores, thick mantles of ammonia, water, and methane, and atmospheres that make them look greenish and blue. Uranus has a truly weird rotation and relatively dull weather, while Neptune has clouds and storms whipped by tremendous winds. Both have rings and moons, with Neptune’s Triton probably being a captured iceball that has active geology.

This episode was brought to you by Squarespace http://www.squarespace.com/crashcourse

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/product....s/crashcourse-astron

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Chapters:
Introduction: Uranus 00:00
Uranus's Structure 1:35
Uranus's Atmosphere 2:53
Uranus's Weird Tilt 3:55
Uranus's Moons 5:12
Uranus's Rings 6:00
Neptune's Structure 6:35
Neptune's Atmosphere 7:02
Neptune's Magnetic Field & Rings 8:10
Triton: Neptune's Largest Moon 8:36
The Discovery of Neptune 9:52
Review 11:27
--

PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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--

PHOTOS/VIDEOS
Uranus http://en.wikipedia.org/wiki/V....oyager_2#/media/File [credit: NASA/JPL/Voyager mission]
Neptune https://www.nasa.gov/content/2....5-years-ago-voyager- [credit: NASA]
King George III http://en.wikipedia.org/wiki/G....eorge_III_of_the_Uni
Uranus from Earth picture by Phil Plait
Uranus, Earth size comparison http://en.wikipedia.org/wiki/F....ile:Uranus,_Earth_si [credit: NASA]
Uranus core, reconstructed from http://en.wikipedia.org/wiki/F....ile:Uranus-intern-en [credit: Wikimedia Commons]
Uranus http://www.spacetelescope.org/....static/archives/imag [credit: NASA, ESA, L. Sromovsky and P. Fry (University of Wisconsin), H. Hammel (Space Science Institute), and K. Rages (SETI Institute)]
Uranus storms http://www.keckobservatory.org..../images/made/images/ [credit: Imke de Pater (UC–Berkeley)/Keck Observatory]
Uranus and rings (tilt demonstration) http://en.wikipedia.org/wiki/U....ranus#/media/File:Ur [credit: Hubble Space Telescope - NASA Marshall Space Flight Center]
Uranus with rings and moons http://www.eso.org/public/images/eso0237a/ [credit: ESO]
Miranda http://en.wikipedia.org/wiki/M....oons_of_Uranus#/medi [credit: NASA]
Verona Rupes http://apod.nasa.gov/apod/ap110404.html [credit: NASA]
Neptune’s Interior https://solarsystem.nasa.gov/m....ultimedia/display.cf [credit: Lunar and Planetary Institute]
Neptune clouds http://en.wikipedia.org/wiki/F....ile:Neptune_clouds.j [credit: NASA]
Neptune’s Great Dark Spot http://en.wikipedia.org/wiki/N....eptune#/media/File:N [credit: NASA / Jet Propulsion Lab]
Neptune’s Rings http://www.rolfolsenastrophoto....graphy.com/Astrophot [credit: Rolf Wahl Olsen / NASA/JPL (Voyager 2, NASA Planetary Data System)]
Triton http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ [credit: NASA / Jet Propulsion Lab / U.S. Geological Survey]
Triton flipped http://en.wikipedia.org/wiki/F....ile:PIA01538_Triton_ [credit: NASA/JPL]
Triton Nitrogen Geysers http://en.wikipedia.org/wiki/T....riton_(moon)#/media/ NASA]

In which John relates a condensed history of India, post-Indus Valley Civilization. John explores Hinduism and the origins of Buddhism. He also gets into the reign of Ashoka, the Buddhist emperor who, in spite of Buddhism's structural disapproval of violence, managed to win a bunch of battles.

Chapters:
Introduction 00:00
The Vedas 0:55
The Caste System 1:33
Dharma 2:40
Samsara, Moksha, and Karma 3:33
Buddhism 5:18
Chutes and Ladders 8:04
Ashoka 9:18
Hinduism 11:04
Credits 11:47

Resources:
India: A History by John Keay: https://bit.ly/3uEgVxE
The Bhagavad Gita: https://bit.ly/3O8A96l
The Bhagavad Gita, Upanishads, and Rig Veda, all-in-one edition: https://bit.ly/3xqP85N

Credits:
Executive Producer: John Green
Producer: Stan Muller
Writer and historian: Raoul Meyer
Script Supervisor: Danica Johnson
Music: Jason Weidner

Thought Bubble is a product of the Smart Bubble Society: http://dft.ba/-smartbubble
the Smart Bubble Society is:
Suzanna Brusikiewicz
Jonathon Corbiere
Nick Counter
Allan Levy
James Tuer
Adam Winnik

Set Design: Donna Sink
Props: Brian McCutcheon

Photos:
David Shankbone
ClipWorks

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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John Green teaches you about the so-called Dark Ages, which it turns out weren't as uniformly dark as you may have been led to believe. While Europe was indeed having some issues, many other parts of the world were thriving and relatively enlightened. John covers European Feudalism, the cultural blossoming of the Islamic world, and the scientific and artistic advances in China, all during these "Dark Ages." Along the way, John will raise questions about the validity of Europe's status as a continent, reveal the best and worst years of his life, and frankly state that science and religion were once able to coexist.

Chapters:
Introduction: Europe 00:00
Why are they called The Dark Ages? 0:50
Feudalism in Medieval Europe 1:34
Dar al Islam and the Umayyad Dynasty 3:55
The Abbasids 4:42
An Open Letter to Science and Religion 7:17
Spanish Muslims in Cordoba 8:15
China's Golden Age 9:12
Credits 10:52

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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