This article was featured in One Story to Read Today, a newsletter in which our editors recommend a single must-read from The Atlantic, Monday through Friday. Sign up for it here. “Not every German ...

The Schengen area allows more than 450 million people to travel freely between member countries without going through border controls. The Schengen area is one of the main achievements of the European ...

More than 400 years ago Galileo showed that many everyday phenomena—such as a ball rolling down an incline or a chandelier gently swinging from a church ceiling—obey precise mathematical laws. For ...