California Governor Jerry Brown passed a bill to legalize assisted suicide for terminally ill persons.
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During World War I, as a soldier, Adolf Hitler was injured by a grenade blast.
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.
Marc Garneau became the first Canadian to reach outer space.
The US Public Broadcasting Service (PBS) was founded.