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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A patent was awarded to Willis Carrier, which gave us the world’s first Air Conditioner.
The Stardust space probe collected a sample of comet dust.
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.
Martin Luther King Jr. pushed hard to encourage the registration of black voters in Selma.
