In which John Green teaches you about disease, and the effects that disease has had in human history. Disease has been with man since the beginning, and it has shaped the way humans operate in a lot of ways. John will teach you about the...

In the late 1970s and throughout the 1980s, protests and unrest continued continued across Europe, and the Soviet Union was having increasing trouble holding its sphere of influence together. Today you'll learn about the labor strikes of...

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....

The aftermath of the collapse of the Soviet Union and its Warsaw Pact had a huge impact on the countries of Eastern Europe. As the former satellite states turned away from communism and Soviet influence, some of them shifted toward...

The thing about European History is that it tends to leak out of Europe. Europeans haven't been great at staying put in Europe. As human beings do, the people of Europe were very busy traveling around to trade, to spread religion, and in...

The Protestant Reformation didn't exactly begin with Martin Luther, and it didn't end with him either. Reformers and monarchs changed the ways that religious and state power were organized throughout the 16th and early 17th centuries....

The post-World War II decades in Europe are sometimes called the Thirty Glorious Years. As those years wore on, tensions between East and West grew, and economic growth slowed or was unevenly distributed across Europe, protests and...

Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we're going to teach you the broad outlines of the so-called Middle...

The Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish city-state in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say,...

European exploration had a lot of side effects. When the Old World and the New World began to interact, people, wealth, food, animals, and disease began to flow in both directions. In the New World, countless millions were killed by...

We've been talking a lot about kings, and queens, and wars, and religious upheaval for most of this series, but let's take a moment to zoom out, and look at the ways that individuals' lives were changing in the time span we've covered so...

You may have noticed that the internet is terrible at religious discourse. Well, this is not a new phenomenon. In the early 16th century, the Roman Catholic church dominated Christianity in Europe, and the institution was starting to...

What happened to the piece of prime prehistoric real estate known as Doggerland? While a massive megatsunami might have drowned it for good, the underlying reason that it now lies under the sea may have actually been the same thing that...

It's no secret that people like pretty stuff, or that we like to make our worlds as pretty as possible. And for centuries, tons of people have used the mineral in this month's Rocks Box to paint the towns blue, so let's talk about some...

Dams are great for humans, providing hydroelectricity and flood control. They're also horrible for the rivers they block. Here are three success stories of ecosystems that bounced back after a dam was removed.



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What happens when the fish that sustain a community start disappearing? Environmental activist Lamin Jassey shares how industrial fish meal factories are devastating local waters, livelihoods and health in The Gambia — and how...

Today, rats are often regarded as the most successful invasive species in the world. The most common species of rat scurried onto the scene roughly 1 to 3 million years ago in Asia. There, they craftily survived Earth’s most recent ice...

Wigs date at least as far back as ancient Egypt, where well-regarded hairdressers crafted them into intricate styles. And under certain ancient Roman dynasties, women’s wigs became particularly ornate. Yet it wasn’t until Louis XIII...

How do we protect ourselves from being misled online? Counter-terrorism expert Vidhya Ramalingam reveals how disinformation is being weaponized to justify violence — increasingly against climate scientists — and introduces a powerful...

When Americans no longer want a car, laptop or clothes, where do some of those goods go? Most end up in the Global South, where millions of people depend on repairing, dismantling or selling them for a livelihood. Environmental groups...

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...

Why Does Earth Have Deserts? For the same reason it has Rainforests: Hadley Cells!!!

Which Bear Is Best?

Summer vacation time is fast vanishing, but this season was expected to break records worldwide, with billions of people breaking out their suitcases, sandals and swimsuits. But while tourism is a huge money maker, more destinations are...