Event:
1st radio contest held (Philadelphia)
More Notable Events on February 23:
1980 Eric Heiden wins all 5 speed skating golds at Lake Placid Olympics
1980 Oil tanker explosion off Pilos, Greece, causes 37-million-gallon spill
1945 U.S. Marines raise flag on Iwo Jima, famous photo and statue
1904 U.S. acquired control of the Panama Canal Zone for $10 million
1886 London Times publishes world's 1st classified ad
