On this day, Nov. 22 …

1963: John F. Kennedy, the 35th president of the United States, is assassinated while riding in a motorcade in Dallas; Texas Gov. John B. Connally, in the same car as Kennedy, is seriously wounded. A suspect, Lee Harvey Oswald, is arrested, and Vice President Lyndon B. Johnson is sworn in as president.

Also on this day:

1906: The “S-O-S” distress signal is adopted at the International Radio Telegraphic Convention in Berlin.

The “S-O-S” distress signal is adopted at the International Radio Telegraphic Convention in Berlin. 1914: The First Battle of Ypres during World War I ends with an Allied victory against Germany.

The First Battle of Ypres during World War I ends with an Allied victory against Germany. 1935: A flying boat, the China Clipper, takes off from Alameda, Calif., carrying more than 100,000 pieces of mail on the first trans-Pacific airmail flight.

A flying boat, the China Clipper, takes off from Alameda, Calif., carrying more than 100,000 pieces of mail on the first trans-Pacific airmail flight. 1954: The Humane Society of the United States is incorporated as the National Humane Society.

The Humane Society of the United States is incorporated as the National Humane Society. 1965: The musical “Man of La Mancha” opens on Broadway.

The musical “Man of La Mancha” opens on Broadway. 1967: The U.N. Security Council approves Resolution 242, which calls for Israel to withdraw from territories it had captured the previous June, and implicitly calls on adversaries to recognize Israel’s right to exist.

The U.N. Security Council approves Resolution 242, which calls for Israel to withdraw from territories it had captured the previous June, and implicitly calls on adversaries to recognize Israel’s right to exist. 1975: Juan Carlos is proclaimed King of Spain.

Juan Carlos is proclaimed King of Spain. 1990: British Prime Minister Margaret Thatcher, having failed to win re-election of the Conservative Party leadership on the first ballot, announces she will resign.

British Prime Minister Margaret Thatcher, having failed to win re-election of the Conservative Party leadership on the first ballot, announces she will resign. 1995: Acting swiftly to boost the Balkan peace accord, the UN Security Council suspends economic sanctions against Serbia and eases the arms embargo against the states of the former Yugoslavia.