1On the evening of July 20th, 969, 10: 56, Armstrong's left foot finally set foot on the surface of the moon, leaving the first human footprint on the surface. At this time, the whole world heard his philosophical words: "This is a small step for man, but a big step for mankind!" " "Indeed, this is a big step across 380,000 kilometers and a big step across 5,000 years! He set foot in the southwest of Jinghai, and the position of the moon surface was 0 41'north latitude and 23 26' east longitude-which was later named "Jinghai base".