How many men walked on the moon from the Apollo ?
First conceived during the Presidency of Dwight D. Eisenhower as a three - man spacecraft to follow the one - man Project Mercury which put the first Americans in space , Apollo was later dedicated to President John F. Kennedy 's national goal of " landing a man on the Moon and returning him safely to the Earth " by the end of the 1960s , which he proposed in a May 25 , 1961 , address to Congress .