In 1920, the League of Nations held its first assembly in Geneva. In 1939, President Franklin Roosevelt laid the cornerstone of the then-controversial Jefferson Memorial in Washington, DC. In 1969, Vietnam antiwar demonstrations reached a peak when an estimated 250,000 to 500,000 protesters marched in Washington, DC. In 2012, Xi Jinping took over leadership of China's Communist Party, replacing Hu Jintao.

William Herschel (1738-1822), astronomer; Felix Frankfurter (1882-1965), U.S. Supreme Court justice; Marianne Moore (1887-1972), poet; Georgia O'Keeffe (1887-1986), artist; Ed Asner (1929- ), actor; Petula Clark (1932- ), singer; Sam Waterston (1940- ), actor; Beverly D'Angelo (1951- ), actress; Lorena Ochoa (1981- ), golfer; Shailene Woodley (1991- ), actress; Karl-Anthony Towns (1995- ), basketball player

In 2005, MLB team owners and the players' union agreed on a tougher testing policy for steroids and other performance-enhancing drugs.

Georgia O'Keeffe was awarded the Presidential Medal of Freedom, the highest U.S. civilian honor, by President Gerald Ford in 1977.

"To create one's own world in any of the arts takes courage." – Georgia O'Keefe