On July 20, 1969, human beings walked on the moon for the very first time
Apollo 11 astronauts Neil Armstrong and Buzz Aldrin exited their lunar lander and planted their moon boots on the lunar surface at about 11 p.m. EDT 0300 GMT on July 21.
Armstrong led the way down the ladder. When he took his first step, he famously said, “That’s one small step for a man … one giant leap for mankind.”
Source: https://www.space.com/39251-on-this-day-in-space.html