Event:
British Prime Minister Churchill says of Royal Air Force, "Never in the field of human conflict was so much owed by so many to so few"
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
