The Anglo-Irish Treaty, agreed to by the British Parliament and Sinn Féin, was ratified.
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Virginia became the first state to ratify the Articles of Confederation.
The Great White Fleet began its worldwide navigation.
Mariah Carey's single 'All I Want for Christmas Is You' reached number one, 25 years after its release.
The name 'Euro' was officially adopted for European Currency.
The Boston Tea Party protest occurred.
