September 20, 2026 – Historical Events & Birthdays
September 20 has marked important moments in Arizona and American history, from Martin Luther King Jr.’s visit to Tucson to landmark developments in civil rights, space policy, sports and the arts.
🌍 Politics & World History
1850 – Congress ends the slave trade in Washington, D.C.
As part of the Compromise of 1850, Congress prohibited the buying and selling of enslaved people in the District of Columbia. Slavery itself continued in Washington until April 16, 1862.
1863 – Union forces make a stand at Chickamauga
On the decisive second day of the Battle of Chickamauga, Confederate forces broke through Union lines near Chickamauga Creek. Union troops under George H. Thomas held at Horseshoe Ridge, but the Union army was forced back toward Chattanooga.
1881 – Chester A. Arthur takes the presidential oath
After President James A. Garfield died from an assassin’s wound, Vice President Chester A. Arthur was sworn in privately at his New York home at 2:15 a.m. He took the public oath at the Capitol two days later.
1959 – Martin Luther King Jr. speaks in Tucson
King addressed the University of Arizona’s Sunday Evening Forum, reportedly delivering a speech titled “A Great Time to Be Alive.” His Tucson appearance came before a visit the next day to Southside Presbyterian Church and a Tohono O’odham community.
1977 – Vietnam joins the United Nations
The United Nations General Assembly admitted the Socialist Republic of Vietnam on September 20, more than two years after the end of the Vietnam War.
🔬 Science & Technology
1853 – Elisha Otis demonstrates an elevator safety device
Elisha Graves Otis sold his first “hoist machine” with an automatic safety brake on September 20, 1853. The invention helped make passenger elevators—and the modern high-rise building—practical.
1956 – JPL launches technology for space reentry
Jet Propulsion Laboratory records the September 20 launch of a reentry test vehicle program involving technology for returning warheads from space. The work contributed to the early U.S. space program and preceded Explorer 1, America’s first satellite.
1963 – Kennedy proposes a joint U.S.-Soviet Moon mission
In an address before the United Nations, President John F. Kennedy proposed cooperation with the Soviet Union on a joint expedition to the Moon. The proposal was a notable Cold War space-policy initiative.
🎭 Culture & the Arts
1946 – The first Cannes Film Festival opens
The inaugural Cannes Film Festival opened in France, beginning an event that would become one of the world’s most prominent celebrations of international cinema.
1964 – The Beatles complete their first major U.S. tour
The Beatles concluded their first major American tour with a charity concert at New York’s Paramount Theater.
1978 – Eubie! opens on Broadway
The Broadway revue celebrating composer and pianist Eubie Blake opened at the Ambassador Theatre. The production helped renew mainstream interest in Blake’s work and in ragtime music.
2001 – Urinetown opens on Broadway
Greg Kotis and Mark Hollmann’s satirical musical opened after its scheduled premiere was delayed by the September 11 attacks. The show later won three Tony Awards.
⚽ Sports
1958 – Hoyt Wilhelm throws the Orioles’ first no-hitter
Wilhelm defeated the New York Yankees 1–0 at Baltimore’s Memorial Stadium, pitching the first no-hitter in Orioles franchise history.
1973 – Billie Jean King wins the “Battle of the Sexes”
King defeated former men’s champion Bobby Riggs in straight sets before an estimated 30,000 spectators at Houston’s Astrodome. The match became a landmark in the history of women’s sports.
1992 – Mickey Morandini completes an unassisted triple play
Philadelphia Phillies second baseman Mickey Morandini completed an unassisted triple play against Pittsburgh. It was the first in Philadelphia history and only the ninth in major-league history at the time.
2012 – The Washington Nationals reach the postseason
Washington secured its first playoff appearance with a 4–1 victory over the Los Angeles Dodgers, marking a major turning point for the revived franchise.
🎂 Notable Birthdays – September 20
1878 – Upton Sinclair
American novelist and social reformer whose The Jungle helped prompt major U.S. meatpacking and food-safety reforms.
1917 – Red Auerbach
Hall of Fame NBA coach and executive who led the Boston Celtics to nine championships as coach and helped build the franchise’s historic dynasty.
1929 – Anne Meara
American actor and comedian who formed the influential comedy team Stiller and Meara with Jerry Stiller and earned major television and theater credits.
1934 – Sophia Loren
Italian screen legend and Academy Award winner widely regarded as one of the leading international film stars of the 20th century.
1951 – Guy Lafleur
Canadian Hockey Hall of Famer who won five Stanley Cups with Montreal and twice captured the NHL scoring title.
1952 – Gary Cole
American actor known for Midnight Caller, The West Wing, Veep and an extensive film and television career.
1967 – George R. R. Martin
American novelist whose A Song of Ice and Fire series became the foundation for HBO’s global hit Game of Thrones.
1975 – Juan Pierre
American MLB outfielder who led the National League in stolen bases three times and finished his career with more than 600 steals.
Summary
September 20 connects southeastern Arizona to national history through Martin Luther King Jr.’s 1959 Tucson visit, while also recalling important developments in civil rights, space exploration, theater, film and sports.
