"Houston, Tranquility Base here. The Eagle has landed"
Eagle, the Apollo Mission's Lunar Module, landed on the moon exactly 40 years today (4:18 ET). You can listen to the audio clip of Eagle's descent to the moon here (150 seconds).
Eagle, and the subsequent lunar modules, were built in Bethpage, New York by Grumman Corporation.
At 10:56 p.m. ET, Neil Armstrong climbed down the ladder and proclaimed: "That's one small step for man, one giant leap for mankind."
Buzz Aldrin joined Armstrong shortly thereafter. The two astronauts explored the lunar surface for two and a half hours, collecting samples and taking photographs.
They left behind an American flag, a patch honoring the fallen Apollo 1 crew, several scientific instruments and a plaque on one of Eagle's legs that read, "Here men from the planet Earth first set foot upon the moon. July 1969 A.D. We came in peace for all mankind."