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

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 4 percent of the world's population and 34 percent of its Nobel laureates.

It's no secret that Europeans and Americans win most Nobel prizes.

Religious distinctions are deeply important for many of the problems in today's Middle East, particularly between Sunni and Shia Muslims in Syria and Iraq.

Find something you love to do and then do it for the rest of your life

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.