US President Barack Obama met with the Dalai Lama amid warnings from China.
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The first telephone directory was issued, which consisted of a single card with 50 names and addresses in Connecticut, USA.
US President Richard Nixon met with Chinese leader Mao Zedong in Beijing to finalize a peace deal between their two countries.
The USSR's uncrewed Luna 20 lunar lander successfully touched down on the surface of the Moon.
Gerald Holtom presented his peace symbol design to the British Direct Action Committee, who accepted it immediately.
Malcolm X was assassinated in New York City, USA.
