Moon Day is celebrated on July 20, 2021. This holiday is a reminder of the first moon-landing on July, 20th in 1969. The first earthling who stepped onto the moon was Neil Armstrong, an American astronaut. Millions of people watched how Apollo 11 landed on the moon. Watching a recording of that historical event on the internet is certainly one of the best ways to celebrate Moon Day.
At that time the landing on the moon was true fiction. For centuries mankind looked up to the moon not really believing that one day they could really go there. The astronauts brang real moon-material back to earth and left a flag as well as a memorial tablet on the surface of the moon to who- or whatever might find and read it someday.