#TodayinHistory
On this date: May 20

2015: David Letterman—who redefined American talk shows with his unconventional humour and innovative segments—stepped down as host of the Late Show with David Letterman.

2002: East Timor officially became independent.

1908: Born this day in 1908, American actor James Stewart was one of Hollywood’s most beloved actors, known for his portrayals of diffident but morally resolute characters, perhaps most notably in It’s a Wonderful Life (1946).