World War II: Six people are killed when a Japanese fire balloon explodes near Bly, Oregon. They are the only Americans killed in the continental US during the war.
An incendiary balloon (or balloon bomb) is a balloon inflated with a lighter-than-air gas such as hot air, hydrogen, or helium, that has a bomb, incendiary device, or Molotov cocktail attached. The balloon is carried by the prevailing winds to the target area, where it falls or releases its payload.