On December 18

A series of mass protests began in Belgrade, Serbia, alleging electoral irregularities in the Serbian parliament and Belgrade city assembly elections.

An Amtrak Cascades passenger train derailed near DuPont, Washington, killing three people and injuring sixty-five others.

The school board of Oakland, California, passed a controversial resolution officially declaring African-American Vernacular English to be a separate language or dialect.

Mohammad Mofatteh, an Iranian philosopher, was assassinated by the Furqan Group.

On Her Majesty's Secret Service, the sixth James Bond film and the only one to star George Lazenby, premiered at the Odeon Leicester Square in London.

Epimetheus, one of the moons of Saturn, was discovered, but was mistaken for Janus; it took twelve years to determine that they are two distinct objects sharing the same orbit.

Ghanaian and other African students organized a protest in Moscow's Red Square in response to the alleged murder of medical student Edmund Assare-Addo.

The United States launched SCORE (rocket pictured), the world's first communications satellite.

Second World War: The Luftwaffe won a victory over the Royal Air Force in the Battle of the Heligoland Bight, greatly influencing both sides' future aerial warfare strategy.

Playing indoors at Chicago Stadium on a modified American football field, the Chicago Bears defeated the Portsmouth Spartans in the first playoff game of the National Football League.

The Jew's Christmas, the first American film to include a rabbi as a character, was released.

In Angola, New York, the last coach of a Lake Shore Railway train derailed, plunged 40 feet (12 m) down a gully, and caught fire, resulting in approximately 49 deaths.

Thomas Paine (depicted) was found guilty of seditious libel for the publication of the second part of his book Rights of Man.

Portuguese forces and their Imbangala allies defeated the Kongo army at the Battle of Mbumbi.

Muslims in Granada began a rebellion against their Castilian rulers in response to forced conversions to Catholicism.