On this day in 1921, Ireland divided into Northern Ireland and Southern Ireland.
On this day in 1937, Gone with the Wind won the Pulitzer Prize for Fiction. It was written by Margaret Mitchell.
On this day in 1947, the new post-war Japanese constitution went into effect.
On this day in 1973, the 108-story Sears Tower in Chicago was topped out at 1,451 feet as the world's tallest building.