1920 was a year in the 20th century. Events Thursday, September 23: Mickey Rooney (star of The Atomic Kid) is born in Brooklyn, New York. Date Unknown: Emmett Brown is born. Date Unknown: Reginald is born. Reference ↑ Back to the Future novelization only. Retrieved from "https://backtothefuture.fandom.com/wiki/1920?oldid=39694" Categories: Years Community content is available under CC-BY-SA unless otherwise noted.