July 20, 1969. Apollo 11 lands on the Moon, while my mother was in labor with me. Neil Armstrong and Buzz Aldrin become the first humans to walk on the moon, an event of which I was completely uninterested in at the time. However, until I was 4 or 5, I believed that I was born on the Moon...
July 20, 1973, Palestinians hijack a Japan Airlines jet en route from Amsterdam to Japan and force it down in Dubai. Again, I am unaware at that age.
July 20, 1976. Just found this out now, but The Viking 1 lander successfully lands on Mars this day.
July 20, 1989. President George H.W. Bush calls for a manned mission to Mars. Didn't his son call for this as well a year ago?
July 20, 1992. A TU
-154 cargo plane crashes in the suburbs of Tblisi, killing forty.
Browsing through wikipedia, I see that a other July 20 aviation events include a French plane dropping leaflets over Berlin during WW1 (1916), an air raid in Kent causing no damage (1918), Air Mail service began between New York City and San Francisco (1921), a plane crash near Toledo (1929), two United States Army Air Corps aircraft collide over Connecticut (1931), aviator Wiley Post damages his plane as he lands in Flat, Alaska, on his first round-the-world flight (1933), a Royal Dutch Airlines plane en route from Milan to Frankfurt crashes into a Swiss mountain, killing thirteen (1935), again, Wiley Post nears Alaska aboard the Winnie Mae on his second round the world flight, becoming the first person to fly around the world twice (1936), Ireland's President Douglas Hyde receives Douglas "Wrongway" Corrigan in Dublin after his transatlantic flight (1938). Fascinating stuff....