Here’s a look at some interesting events that took place on this day in history:

1863 – Gen. Robert E. Lee offers his resignation following his defeat in the Battle of Gettysburg (More info)

1876 – Thomas Edison patents the mimeograph (More info)

1963 – In England, a gang of 15 train robbers steal $7 million in the Great Train Robbery (More info)

1974 – Spurred by the Watergate scandal, President Richard Nixon announces his resignation (More info)

1988 – Gangsta rap hits the mainstream with the release of N.W.A’s ‘Straight Outta Compton’ (More info)