If by 'discover' you mean "the first identify it, separate form the Sun and notice that it is regularly up there in the sky", that would be Adam. If you mean 'studied the moon's phases, and it's markings', Ancient Egyptians and Babylonians have left fossil records of both the Sun and the moon that they observed, lived by and worshipped.
The question is not clear, it could be a early caveman.
Neil Armstrong didn't discover anything. He was the first man to wallk on the moon. When he took his first step he said to the U.S. what is now a famous quote by him " The eagle has landed."Neil was a awsome man.
The first time they looked upwards after the moon had risen.
Galileo was the first
1969 is when the first man on the moon Neil Armstrong took man's first steps on the moon.
Neil Armstrong was the first man on the moon.
The first man on the moon is Neil Armstrong
the USA put the first man on the moon.
Neil Armstrong was the first man to walk on the moon.
Neil Armstrong was the first man to walk on the moon.
the first man landed on moon is Neil Armstrong
i am pretty sure the song is man on the moon