Events of August 21

1911 - The painting Mona Lisa by Leonardo da Vinci was stolen from the Louvre Museum in Paris by Italian handyman Vincenzo Peruggia. It was recovered in 1913.

1944 - Representatives from the United States, Britain, Russia, and China met at Dumbarton Oaks near Washington to plan the formation of the United Nations.

1982 - King Sobhuza II of Swaziland passed away at the age of 83. He had been on the throne since 1921.

1994 - The last French troops withdrew from Rwanda, ending a controversial humanitarian mission.

2000 - Golfer Tiger Woods won the PGA Championship, becoming the first golfer in nearly 50 years to win three major tournaments in a single year.

2002 - A deadly explosion occurred in a residential building in Moscow.

2002 - Michael Cooper, the former CEO of Enron, pleaded guilty to money laundering and fraud charges, becoming the first employee to admit to a criminal role in the collapse of the energy giant.

2005 - Robert Moog, whose name became synonymous with electronic music in the 1960s and 1970s by inventing synthesizers bearing his name, passed away at the age of 71.

2016 - The closing ceremony of the Olympic Games took place in Rio de Janeiro, Brazil.

2017 - A total solar eclipse occurred across the United States.

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