1220
After promising to go to the aid of the Fifth Crusade within nine months, Frederick II is crowned emperor by Pope Honorius III.
1915
The Anglo-Indian army, led by British General Sir Charles Townshend, attacks a larger Turkish force under General Nur-ud-Din at Ctesiphon, Iraq, but is repulsed.
1919
A Labor conference committee in the United States urges an eight-hour workday and a 48-hour week.
1928
British King George is confined to bed with a congested lung; the queen is to take over duties.
1963
Lee Harvey Oswald assassinates President John F. Kennedy in Dallas, Texas. Lyndon B. Johnson becomes president.
1964
Almost 40,000 people pay tribute to John F. Kennedy at Arlington Cemetery on the first anniversary of his death.
1973
Great Britain announces a plan for moderate Protestants and Catholics to share power in Northern Ireland.
1986
Justice Department finds memo in Lt. Col. Oliver North's office on the transfer of $12 million to Contras of Nicaragua from Iranian arms sale.
1990
Britain's Prime Minister Margaret Thatcher confirms the end of her premiership by withdrawing from the leadership election of the Conservative Party.
1995
The first feature-length film created entirely with computer generated imagery - Toy Story - premiers.
2004
The Orange Revolution, protesting a primary election believed to have been rigged, begins in the Ukraine. On Dec 26 Ukraine's Supreme Court orders a revote..
2005
Angela Merkel becomes the first woman ever to be Chancellor of Germany; the former research scientist had previously been the first secretary-general of the Christian Democratic Union.