On this day: February 20

Published: Feb 19 2013 07:12:59 PM EST   Updated On: Feb 20 2014 02:00:00 AM EST
John Glenn entering the Mercury Friendship 7 capsule

The Post Office is born, World War II gets its first flying ace, John Glenn becomes the first American to orbit the Earth, and a fire at a Great White concert leaves 100 dead, all on this day.