The Outer Space Treaty was signed to prevent the use of nuclear weapons being utilized in space.
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Apollo 1 test launch failed, and astronauts Gus Grissom, Ed White, and Roger B. Chaffee all died.
A patent for his electric lamp invention was given to Thomas Edison.
The theory of Wave Mechanics by physicist Erwin Schrödinger was first taught in lectures.
The first of 126 nuclear tests started at the Nevada Test Site.
The UK Parliament passed the Military Service Act of 1916, introducing conscription in the UK.
