On Nov. 22, 1963, John F. Kennedy, the 35th president of the United States, was assassinated while riding in a motorcade in Dallas; Texas Gov. John B. Connally, in the same car as Kennedy, was seriously wounded; a suspect, Lee Harvey Oswald, was arrested; Vice President Lyndon B. Johnson was sworn in as president.
In 1906, the “S-O-S” distress signal was adopted at the International Radio Telegraphic Convention in Berlin.
In 1935, a flying boat, the China Clipper, took off from Alameda, Calif., carrying more than 100,000 pieces of mail on the first trans-Pacific airmail flight.
In 1943, President Franklin D. Roosevelt, British Prime Minister Winston Churchill and Chinese leader Chiang Kai-shek met in Cairo to discuss measures for defeating Japan.