One of the reasons is because he was the first one to step on the moon which is an explanation for the "One small step for man" part. Another reason that he said that is because that he said, "one giant leap for mankind" because it is monumental that man managed to have a man walk on the moon.

One of the reasons is because he was the first one to step on the moon which is an explanation for the "One small step for man" part. Another reason that he said that is because that he said, "one giant leap for mankind" because it is monumental that man managed to have a man walk on the moon.

Apollo 11 effectively proved US victory in the Space Race to demonstrate spaceflight superiority, by fulfilling a national goal proposed in 1961 by President John F. Kennedy, "before this decade is out, of landing a man on the Moon and returning him safely to the Earth."What did Neil Armstrong really say when he took his first step on the moon? ... But after returning from space, Armstrong said that wasn't what he had planned to say. He said there was a lost word in his famous one-liner from the moon: "That's one small step for 'a' man." It's just that people just didn't hear it."On July 20, 1969, American astronaut Neil Armstrong stepped off the lunar landing module Eagle, and became the first human to walk on the surface of the moon. Nearly 240,000 miles from Earth, Armstrong spoke these words to more than a billion people listening at home: "That's one small step for man, one giant leap for mankind." Armstrong died on August 25, 2012, at age 82. I think Neil Armstrong said that because yes he only took a few steps on the moon, however this was a momentous moment for humans. If one man can go to the moon what's to come in the future. That's kind of what he's implying when he said that. He said that because stepping on the moon is a very big achievement to man kind and had a big impact on mankind. And he and his friend were the first people to do it. Being able to step on a planet as much to be the first is a huge impact. When Neil Armstrong said, and I quote "That's one small step for man, one giant leap for mankind" I believe when Neil Armstrong said that he meant that taking a man across a lake is easy, but taking a man across an ocean is difficult. When he landed on that moon man had put someone on the moon. For centuries man has wondered when we would get to the moon. But now, space travel is there. When Neil Armstrong said those words, I think it mean that putting a man on the moon was a significant checkpoint in the history of man. When Neil Armstrong said, and I quote "That's one small step for man, one giant leap for mankind" I believe when Neil Armstrong said that he meant that taking a man across a lake is easy, but taking a man across an ocean is difficult. When he landed on that moon man had put someone on the moon. For centuries man has wondered when we would get to the moon. But now, space travel is there. When Neil Armstrong said those words, I think it mean that putting a man on the moon was a significant checkpoint in the history of man. Neil Armstrong once said, "That’s one small step for man and one giant leap for mankind.” I feel like he that because he took one step on the moon that was one of the biggest accomplishments that has ever took place in mankind. Did you notice that he said small step for men and a giant leap for man kind? He might of said that because it was something new. He didn’t say anything about the space race either. Maybe one small step for USA and one huge step for the whole world. I think he meant that we are stronger together and we can work together. Cause Soviet Union and other countruies were trying to get to the moon> Cause they new the first person to get to the moon will be very powerful.