AT&T was founded by Alexander Graham Bell, Gardiner Greene Hubbard, and Thomas Sanders.
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During World War I, as a soldier, Adolf Hitler was injured by a grenade blast.
The Constitution of the Federative Republic of Brazil was ratified.
King Louis the Pious was crowned emperor of the Holy Roman Empire by the Pope.
Britain's R101 airship crashed in France on its maiden voyage.
Research into fossil footprints at White Sands National Park in New Mexico confirmed humans were in the Americas at least 21,000 years ago.
