(CNN)History was made on this day more than half a century ago when two American astronauts walked on the moon.
A mission many doubted was possible became reality for Neil Armstrong -- the first man to walk on the moon -- and Edwin "Buzz" Aldrin, who joined him 19 minutes later.
Here are some facts about what happened 51 years ago Monday:
World watched history unfold
Apollo 11 became the first manned spacecraft to land on the moon.