In which John Green teaches you about World War I and how it got started. Crash Course doesn't usually talk much about dates, but the way that things unfolded in July and August of 1914 are kind of important to understanding the Great...

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...

At the end of World War II, the nations of Europe were a shambles. Today we'll learn about how the various countries and blocs approached the problem of rebuilding their infrastructure and helping their residents recover. You'll learn...

A group of strangers have gathered to design a just society. To ensure none of them rig the system, they’ve been placed under a veil of ignorance. Under this veil, they’re blind to information about age, sex, profession, wealth,...

In May of 1945 the Third Reich was in chaos. Adolf Hitler was dead and German surrender was imminent. But while World War II was almost over, a new war was brewing. And the US was eager to recruit the smartest minds in Germany before the...

For years, scientists couldn't solve the mystery of strange pits on the floor of the North Sea. Initially they blamed methane seeps, but it seems like the pits were actually made on porpoise.

In 1997, NASA bought a Boeing 747SP for what might be both a super cool and super absurd purpose. Turn it into SOFIA, a flying telescope.

Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.

When scientists first split the atom, they didn’t realize what they’d done until physicist Lise Meitner figured out they had discovered what we now call nuclear fission.

In the 1800s, Wilhelm Kühne created an image of a window from the eyes of a rabbit. Was this technology applicable to humans? Hosted by: Michael Aranda

Today in many countries solar is the cheapest form of energy to produce. Millions of homes are equipped with rooftop solar, with most units paying for themselves in their first seven to 12 years and then generating further savings. So,...

In the late 19th and early 20th centuries, theater was evolving rapidly in Europe. Impresarios like Georg II, Duke of the Duchy of Saxe Meinengen (in what is now Germany), were pushing theater troupes to new heights of realism. New...

Are you ready to learn something about the world? Then you're ready for Bertolt Brecht, and his ideas about Epic Theater. Brecht wanted to lean into the idea of theater as a tool to upset and educate the world about stuff like the...

The fossil fuel industry is a factory of fairy tales, says activist and School Strike for Climate organizer Luisa Neubauer. Tracing the industry's five-decade trickle of lies about climate science, she busts the myth that economic growth...

In which John Green teaches you about the war that was supposed to end all wars. Instead, it solved nothing and set the stage for the world to be back at war just a couple of decades later. As an added bonus, World War I changed the way...

Today, we're going to talk about board games, but instead of trying to trace their histories, which we've already covered a bit of in ep2 on ancient games, we're going to look really closely at just two board games - Monopoly and The...

In 1800s, miners began working in exposed deposits of mud near the town of Messel, Germany. They were extracting oil from the rock and along with the oil, they found beautifully preserved fossils of animals from the Eocene. What happened...

In eastern Europe, in the 17th century a couple of "great powers" were coming into their own. The vast empire of Russia was modernizing under Peter the Great, and the relatively tiny state of Prussia was evolving as well. Russia (and...

To keep their solid gold Nobel Prizes away from the Nazis, James Franck and Max von Laue sent their medals to trusted colleague Niels Bohr. But when Germany invaded Denmark in 1940, the medals were no longer safe - so chemist George de...

We've spent a lot of time focusing on France and the U.S. as that's where a significant amount of both infrastructure and business models were initially set up for film. But there were other countries adding their own stories to the...

The European Renaissance may have started in Florence, but it pretty quickly moved out of Italy and spread the art, architecture, literature, and humanism across Europe to places like France, Spain, England, and the Low Countries....

In spring 2019, more than 17,000 Europeans from 33 countries signed up to have a political argument with a complete stranger. They were part of "Europe Talks," a project that organizes one-on-one conversations between people who disagree...

The traditional approach to work needs a redesign, says economist Juliet Schor. She's leading four-day work week trials in countries like the US and Ireland, and the results so far have been overwhelmingly positive: from increased...

Tour the deep dark world of the East German state security agency known as Stasi. Uniquely powerful at spying on its citizens, until the fall of the Berlin Wall in 1989 the Stasi masterminded a system of surveillance and psychological...