TODAY'S HISTORY: In 1920, the League of Nations held its first assembly in Geneva.
In 1939, President Franklin Roosevelt laid the cornerstone for the Jefferson Memorial during a ceremony in Washington, D.C.
In 1969, Vietnam anti-war demonstrations reached a peak when an estimated quarter- to half-million protesters marched peacefully in Washington, D.C.
In 2002, Hu Jintao took over leadership of China's Communist Party, replacing Jiang Zemin.
In 2006, the international 24-hour news channel Al Jazeera English launched worldwide.
TODAY'S BIRTHDAYS: 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; Daniel Barenboim (1942- ), pianist/conductor; Jonny Lee Miller (1972- ), actor; Chad Kroeger (1974- ), singer-songwriter; Shailene Woodley (1991- ), actress; Karl-Anthony Towns (1995- ), basketball player.
TODAY'S FACT: Georgia O'Keeffe was awarded the Presidential Medal of Freedom, the highest U.S. civilian honor, by President Gerald Ford in 1977.
TODAY'S SPORTS: In 2005, Major League Baseball team owners and the players' union agreed on a tougher testing policy for steroids and other performance-enhancing drugs.
TODAY'S QUOTE: "One writes because one has a burning desire to objectify what it is indispensable to one's happiness to express." -- Marianne Moore, "Idiosyncrasy and Technique"
TODAY'S NUMBER: 22 -- average age of a U.S. infantryman serving in the Vietnam War.