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Much has been written about what exactly caused World War I. As befits a true global war, the reality is that there isn't a single cause. There aren't even three causes. There are a vast array of causes. Today we'll get into just a few of those causes, including the complex system of alliances in Europe, the myriad military conflicts that played out in the years and decades leading up to the war, and the event that many point to as the beginning: the assassination of Archduke Franz Ferdinand.
Sources
-Hunt, Lynn. Making of the West: Peoples and Cultures. Boston: Bedford St. Martins, 2019.
-Smith, Bonnie G. Europe in the Contemporary World Since 1900. 2nd ed. London; Bloomsbury, 2020.
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:
Eric Prestemon, Sam Buck, Mark Brouwer, Efrain R. Pedroza, Matthew Curls, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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During World War II, Nazi Germany undertook the imprisonment and summary execution of many of its own citizens, and citizens of the nations they occupied. One of the groups that came under assault was the European Jewish population. More than six million Jewish people were killed in a systematized genocide. Five million more people died in the same time frame as a result of Nazi persecution. In addition to the Jews, Roma people, homosexuals, political dissidents, Polish people, Slavic people, black people, and many other perceived enemies were imprisoned and killed by the regime.
Sources
-Bergen, Doris. War and Genocide: A Concise History of the Holocaust. Lanham, MD: Rowman and Littlefield, 2016.
-Browning, Christopher. Ordinary Men: Reserve Battalion 101 and the Final Solution in Poland. New York: Harper, 2017.
-Gross, Jan. Neighbors: The Destruction of the Jewish Community in Jedwabne, Poland. Princeton: Princeton University Press, 2001.
-Hanebrink, Paul. A Specter Haunting Europe: The Myth of Judeobolshevism. Cambridge: Harvard University Press, 2018.
-Mazower, Mark. Hitler’s Empire: How the Nazis Ruled Europe. New York: Penguin, 2008.
-Naimark, Norman m. Genocide: A World History. New York: Oxford University Press, 2017.
-Smith, Bonnie G. Europe in the Contemporary World, 1900 to the Present, 2nd ed. London: Bloomsbury, 2020.
In other news, we've partnered with Arizona State University for a new bunch of video series! Check out Study Hall: https://www.youtube.com/playli....st?list=PLNrrxHpJhC8
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:
Eric Prestemon, Sam Buck, Mark Brouwer, William McGraw, Siobhan Sabino, Jason Saslow, Jennifer Killen, Jon & Jennifer Smith, DAVID NOE, Jonathan Zbikowski, Shawn Arnold, Trevin Beattie, Matthew Curls, Rachel Bright, Khaled El Shalakany, Ian Dundore, Kenneth F Penttinen, Eric Koslow, TimothyJ Kwist, Indika Siriwardena, Caleb Weeks, HAIXIANGN/A LIU, Nathan Taylor, Andrei Krishkevich, Sam Ferguson, Brian Thomas Gossett, SR Foxley, Tom Trval, Justin Zingsheim, Brandon Westmoreland, dorsey, Jessica Wode, Nathan Catchings, Yasenia Cruz, Jirat
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We try not to get into too much great man history here at Crash Course, but we have to admit: Napoleon Bonaparte is a pretty big deal. Join us as we track the rise, further rise, fall, rise, fall, mortal fall, and posthumous rise of Napoleon. This guy changed France, he changed Europe, and in a lot of ways he changed the world.
Sources
-Al-Jabarti, Abd al-Rahman, Napoleon in Egypt: Al-Jabarti’s Chronicle of the French Occupation of 1798, Shmuel Moreh, ed. Princeton: Markus Wiener, 1993.
-Bell, David A. Napoleon: A Concise Biography. New York: Oxford University Press, 2015.
-Hunt, Lynn et al. Making of the West: Peoples and Cultures. Boston: Bedford St. Martin’s, 2019.
-Sperber, Jonathan. Revolutionary Europe, 1780-1850. 2nd ed. New York: Routledge, 2017.
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:
Eric Prestemon, Sam Buck, Mark Brouwer, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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Books That Drive Kids CRAZY!: This Book Is Red
by Beck and Matt Stanton
Read by Let’s Read Stories
This clever companion to This Is a Ball and Did You Take the B from My _ook? is the perfect read-aloud for the giggling masses who love Hervé Tullet's Press Here, Lane Smith's It's a Book!, and BJ Novak's The Book With No Pictures.
The Books That Drive Kids CRAZY! series offers parents, teachers, and storytellers a hilarious script for fun reading time with children. In book 3, This Book Is Red, something is clearly bonkers when the narrator insists that frogs and penguins are obviously the same color as lobsters--and the claims get more outrageous from there. What is up with this nonsense? Kids will demand to know--and all readers will be howling with laughter all along the way. With strikingly simple text and art, Books That Drive Kids CRAZY! are ideal picks for emergent readers.
Click here to purchase This Book is Red: https://www.amazon.com/Books-T....hat-Drive-Kids-CRAZY


LITTLE BUNNY FOO FOO - The Real Story - Easter Children's Stories Read Aloud for Kids
by Cori Doerrfeld
Click here to purchase Little Bunny Foo Foo - The Real Story:https://www.amazon.com/Little-....Bunny-Foo-Real-Story
Finally, the real Little Bunny Foo Foo song can be sung. You see, Little Bunny Foo Foo was provoked into bopping those field mice on the head after they stole her freshly baked cupcakes! And the so-called "good" fairy? Well, let's just say she was spotted accepting a sweetly frosted bribe or two. Adorable art, irreverent humor, and a deliciously satisfying surprise ending - Cori Doerrfeld has given this classic song an irresistible modern twist.


Pete the Cat: Out of this World Read Aloud for Children by Kids
by James Dean
Click here to purchase Pete the Cat Out of this World:https://www.amazon.com/Pete-Ca....t-Out-This-World/dp/
Blast off into space with New York Times bestselling author and artists James Dean and everyone’s favorite cat-stronaut, Pete the Cat, in Pete the Cat: Out of This World. Includes over 30 fun stickers!
When Pete heads off to space camp, he gets to float in zero gravity, build rockets, and even goes on an extraordinary interstellar mission that is out of this world—literally. Houston, ready to rock out with Pete the Cat!


Ada Twist Scientist
by Andrea Beaty
Illustrated by David Roberts
Read by Let's Read Stories
A #1 New York Times Bestseller
A Wall Street Journal Bestseller
A USA Today Bestseller
The creators of the New York Times bestselling picture books Rosie Revere, Engineer and Iggy Peck, Architect are back with a story about the power of curiosity in the hands of a child who is on a mission to use science to understand her world. Ada Twist, Scientist, from powerhouse team Andrea Beaty and David Roberts, is a celebration of STEM, perseverance, and passion.
Like her classmates, builder Iggy and inventor Rosie, scientist Ada, a character of color, has a boundless imagination and has always been hopelessly curious. Why are there pointy things stuck to a rose? Why are there hairs growing inside your nose? When her house fills with a horrific, toe-curling smell, Ada knows it’s up to her to find the source. What would you do with a problem like this? Not afraid of failure, Ada embarks on a fact-finding mission and conducts scientific experiments, all in the name of discovery. But, this time, her experiments lead to even more stink and get her into trouble!
Inspired by real-life makers such as Ada Lovelace and Marie Curie, Ada Twist, Scientist champions girl power and women scientists, and brings welcome diversity to picture books about girls in science. Touching on themes of never giving up and problem solving, Ada comes to learn that her questions might not always lead to answers, but rather to more questions. She may never find the source of the stink, but with a supportive family and the space to figure it out, she’ll be able to feed her curiosity in the ways a young scientist should.
Iggy Peck and Rosie Revere have earned their places among the most beloved children’s characters, and they have inspired countless kids and adults to follow their dreams and passions. Now in her own charming and witty picture book, determined Ada Twist, with her boundless curiosity for science and love of the question “Why?,” is destined to join these two favorites. The book is the perfect tool to remind both young girls and women that they have the intelligence and perseverance to achieve their dreams.
Click here to Support the author: https://www.amazon.com/Ada-Twi....st-Scientist-Andrea-


How to Surprise a Dad
by Jean Reagan
Illustrated by Lee Wildish
From the creators of the New York Times bestsellers HOW TO BABYSIT A GRANDPA and HOW TO BABYSIT A GRANDMA comes a charming HOW TO book that's all about surprises!
So you want to surprise your dad? You’re in luck! The pages of this book are full of tips on how to become a super dad surpriser, including tips for things you can make, do, or find—just for your dad.
Be sure to read up on:
· Yummy treats and presents for a dad
· What to do if he starts getting suspicious
· How to prepare for the big moment (where to hide everyone, and how to practice whispering “Surprise!”)
From the author-illustrator team behind the New York Times bestselling HOW TO... series comes an adorable, funny, surprising celebration of dads!
Click here to purchase How to Surprise a Dad: https://www.amazon.com/How-Sur....prise-Dad-Jean-Reaga


The Night Before St. Patrick's Day - Children's Stories Read Aloud - St. Patrick's Day Kids Books
by Natasha Wing
Illustrated by Amy Wummer
Click here to purchase The Night Before St. Patrick's Day: https://www.amazon.com/Night-B....efore-St-Patricks-Da
Natasha Wing puts an Irish twist on a Christmas classic. It's the night before St. Patrick's Day, and Tim and Maureen are wide awake setting traps to catch a leprechaun! When they wake the next morning to the sound of their dad playing the bagpipes and the smell of their mom cooking green eggs, they're shocked to find that they've actually caught a leprechaun. But will they be able to find his pot of gold?


Too Many Carrots - Easter Stories for Children' Read Aloud
by Katy Hudson
Click here to purchase Too Many Carrots: https://www.amazon.com/Too-Man....y-Carrots-Katy-Hudso
Rabbit loves carrots. Maybe a little too much. In fact, his carrots are crowding him out of his cozy burrow. When his friends offer to help ― that’s just asking for trouble. TOO much trouble! This charming and lovingly illustrated picture book shows how friendships get us over the rough spots in life, even if the going gets a little bumpy!


A Is for Awful: A Grumpy Cat ABC Book (Grumpy Cat) - Children's Stories Read Aloud
Click here to purchase A Is for Awful: A Grumpy Cat ABC Book: https://www.amazon.com/Awful-G....rumpy-Book-Little-Go
Grumpy Cat has 8 million Facebook followers, her own TV movie, and now . . . a Little Golden Book! The world-famous feline stars in this hilarious storybook.


Dinosaur vs. Bedtime (A Dinosaur vs. Book)
by Bob Shea
Click here to purchase Dinosaur vs. Bedtime (A Dinosaur vs. Book): https://www.amazon.com/Dinosau....r-vs-Bedtime-Board-B
Roaaaar! Roaar! Nothing can stop me!
Nothing can stop little dinosaur--not talking grownups, spaghetti, or even bath time. But what happens when he faces the biggest challenge of all...bedtime?
With spare text and irresistible dinosaur roaaars, little dinosaurs will be begging for this book to be read again and again. The sturdy board book format is ideal for strong-minded toddlers.


Convert any decimals to fractions with these awesome math tricks!
Easy basic decimals - 1:43
Simple recurring Decimals (eg 0.7777 or 0.242424) - 3:33
Harder recurring decimals (eg 0.1666 or 0.916666) - 7:35
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Basic plan reading.
This lesson lloks at some basic calculations involved - how to work out the position of objects such as a window.
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Fuel consumption calculations are easy - just follow the maths.
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#fuelconsumption
#mpg
#fuel costs


This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!
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This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!
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To multiply large numbers quickly we use the method of cross multiplication - a type of method used in vedic math. By following the method in this series of videos you will quickly and easily learn how to multiply any size quickly - not with lots of different tricks like the other methods, but by using one method only.
This video looks at how to multiply large numbers, four digits and over. Become a math genius - a master at numbers! Impress your teachers and get perfect grades at Math in school be working faster than your teacher can!
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Percentages can be done mentally both accurately and rapidly using this cool math trick. Become a genius in no time!
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How Many Faces, Edges And Vertices Does A Cylinder Have?
Here we’ll look at how to work out the faces, edges and vertices of a cylinder.
We’ll start by counting the faces, these are the flat surfaces that make the cylinder. A cylinder has 2 faces altogether - 2 circular faces, as well as 1 rectangular face.
Next we’ll work out how many edges the cylinder has, which are where two faces meet. A cylinder has 2 edges.
Next we’ll count the corners of the cylinder (the corners). No surprises, a cylinder does not have any vertices.
For the full playlist for the faces, edges and Vertices of a whole lot of 3D shapes go to https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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