Event:
"Play's the Thing" closes at Criterion Theater New York City after 75 performances
More Notable Events on August 20:
1982 U.S. Marines land in Beirut, Lebanon
1980 Mount Everest climbed by Italian Reinhold Messner, alone
1977 NASA launches Voyager 2 towards Jupiter, Saturn, Uranus and Neptune
1929 1st airship flight around Earth flying eastward completed
1741 Alaska discovered by Danish explorer Vitus Bering