On this date:
In 1492, the leader of the last Arab stronghold in Spain surrendered to Spanish forces loyal to King Ferdinand the Second and Queen Isabella the First.
In 1788, Georgia became the fourth state to ratify the US Constitution.
In 1921, religious services were broadcast on radio for the first time as KDKA in Pittsburgh aired the regular Sunday service of the city's Calvary Episcopal Church.
In 1929, the United States and Canada reached agreement on joint action to preserve Niagara Falls.
In 1935, Bruno Hauptmann went on trial in Flemington, New Jersey, on charges of kidnapping and murdering the infant son of Charles and Anne Lindbergh. (Hauptmann was found guilty, and executed.)
In 1942, the Philippine capital of Manila was captured by Japanese forces during World War Two.
In 1960, Senator John F. Kennedy of Massachusetts announced his candidacy for the Democratic presidential nomination.