Day of the Ninja

It's the Fifth of December: Day of the Ninja!
On this day in 1901, in presumably unrelated incidents, Walt Disney and Werner Heisenberg were born.
In 1933, the 21st amendment was ratified, repealing the 18th amendment. Prohibition was over (except in Kansas).
In 1945, Flight 19, a squadron of Navy bombers, disappeared off the coast of Florida, in what would become known as the Bermuda Triangle.