7-20-1969 美国人实现了人类第一次踏足月球。之前 9-13-1959,苏联人第一次将未载人航天器送上月球。之后1-3-2019,中国人第一次将未载人航天器送上月球远离地球的一面。
On July 20, 1969, Neil Armstrong became the first human to step on the moon. He and Aldrin walked around for three hours. https://www.nasa.gov/audience/forstudents/k-4/stories/first-person-on-moon.html