Neil Armstrong(1930-2012)

Astronauts Armstrong and Buzz Aldrin planted a plaque on the lunar surface on July 20, 1969. It reads: "Here men from the planet Earth first set foot upon the Moon, July 1969 AD. We came in peace for all mankind.".

That's one small step for man, one giant leap for mankind. [First words spoken on the moon. The speech as written by his wife read, "That's one small step for a man, a giant leap for mankind". Unfortunately, he forgot the a in the between for and man, thus changing the meaning.]