In 1960, Sen. John F. Kennedy of Massachusetts launched his successful bid for the presidency.
1788: Georgia became the fourth state to ratify the U.S. Constitution.
1893: The U.S. Postal Service issued its first commemorative stamp to honor the World's Columbian Expedition and the quadricentennial of Christopher Columbus' voyage.
1900: U.S. Secretary of State John Hay announced the "Open Door Policy" to facilitate trade with China.
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.
1942: The Philippine capital of Manila was captured by Japanese forces during World War II.
1991: Sharon Pratt was sworn in as mayor of Washington, D.C., becoming the first black woman to head a city of Washington's size and prominence.