Mariah Carey’s single “All I Want for Christmas Is You” reached number one, 25 years after its release.
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The Pioneer 6 space probe was launched atop a Delta-E rocket.
Vasco da Gama became the first European to sail along Africa's East Coast.
The Anglo-Irish Treaty, agreed to by the British Parliament and Sinn Féin, was ratified.
The US State Department increased the reward for information on the Islamic State leader Abu Bakr al-Baghdadi to $25 million.
O.J. Simpson became the first NFL running back to rush for 2,000 yards in a season.
