Coronavirus was declared a Public Health Emergency of International Concern by the World Health Organization (WHO).
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The US embassy in Kabul, Afghanistan, closed due to increasing security concerns.
Captain James Cook reached a record 1,130 miles from the South Pole.
Researchers identified the earliest known prehistoric ancestor of humans.
Silent romance comedy ''City Lights" by Charlie Chaplin premiered at the Los Angeles Theater.
Patsy Cline released her single 'I Fall to Pieces.'
