Mexico declared war on Nazi-Germany and Japan.
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Two new moons of Saturn were found in photos from the Hubble Space Telescope by Astronomers Amanda S. Bosh and Andrew S. Rivkin.
The Trevi Fountain, one of Rome's most famous landmarks, was opened to the public by Pope Clement XIII.
When Cubs' player Billy Sunday played his first game, he struck out four times.
The Wright Brothers were granted a patent for their 'flying machine' after applying for it three years earlier.
The 'Pact of Steel' was signed, an agreement between Fascist Italy and Nazi Germany.
