The Mongol conquests are difficult to fathom. Although their most important technology was the horse, they conquered much of the known world from China to Europe, a series of wars that killed tens of millions of people, then a substantial chunk of the world's population.

The Mongol conquests are difficult to fathom. Although their most important technology was the horse, they conquered much of the known world from China to Europe, a series of wars that killed tens of millions of people, then a substantial chunk of the world's population.

I saved Latin. What did you ever do?

Maps can be a remarkably powerful tool for understanding the world and how it works, but they show only what you ask them to.

The United States has worse income inequality than Nigeria.

The United States has 4 percent of the world's population and 34 percent of its Nobel laureates.

Latin America and the Caribbean are the happiest on average in the world.