The first 1,000 Royal Air force bomber raid dropped 38 thousand tons of bombs on Cologne, Germany.
Source
SpaceX's Crew Dragon Demo-2 launched from the Kennedy Space Center in Florida.
Andrew Jackson killed Charles Dickinson in a duel.
Seth MacFarlane's 'A Million Ways to Die in the West' was released to theaters.
The Angry Brigade went to trial.
The US Mariner 9 was launched – it went on to become the first satellite to orbit Mars.
