1907

The U.S. Army Signal Corps established an aeronautical division, the forerunner of the U.S. Air Force.

1936

The Olympics opened in Berlin with a ceremony presided over by Adolf Hitler.

1944

An uprising broke out in Warsaw, Poland, against Nazi occupation; the revolt lasted two months before collapsing.

2013

Defying the United States, Russia granted Edward Snowden temporary asylum, allowing the National Security Agency leaker to slip out of the Moscow airport where he had been holed up for weeks.