On this day in 1775, George Washington took command of the Continental Army at Cambridge, Massachusetts.
On this day in 1884, Dow Jones & Company published its first stock average.
On this day in 1969, the biggest explosion in the history of rocketry occurred when the Soviet N-1 rocket exploded and subsequently destroyed its launch pad.
On this day in 1996, the Stone of Scone was returned to Scotland.
And on this day in 2013, President of Egypt Mohamed Morsi was overthrown by the military after four days of protests all over the country calling for Morsi's resignation.