The mapping of Mars’ surface began.
Mariner 9 started mapping over 85% of the surface area of Mars on this day.
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The Alemanni crossed the frozen Rhine in large numbers and invaded the Roman Empire.
The Moon was photographed for the first time.
The World Health Organization (WHO) announced that gaming addiction is a Mental Health Disorder.
The US & Canada agreed to divert the Niagara River to protect the Niagara Falls from eroding.
Democratic Senator John F. Kennedy gave a speech announcing that he was running for US President.