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

Here is what Muslims and Muslim organizations are expected to say: "As a Muslim, I condemn this attack and terrorism in any form." This expectation we place on Muslims, to be absolutely clear, is Islamophobic and bigoted.

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

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

We often forget that Spain controlled big parts of Europe, in Italy and the Netherlands. In the Middle Ages, Spain and Portugal were so powerful that they signed a set of treaties literally dividing up the globe between them.

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

The United States has worse income inequality than Nigeria.