Today is the 263rd day of the year with 102 days remaining.
451 - The Battle of Chalons takes place in North Eastern France. Flavius Aetius' victory over Attila the Hun in a day of combat, is considered to be the largest battle in the ancient world.
1519 - Ferdinand Magellan sets sail from Sanlucar de Barrameda with about 270 men on his expedition to circumnavigate the globe.
1596 - Diego de Montemayor founds the city of Monterrey in New Spain, that will one day become what we know as Mexico.
1633 - Galileo Galilei is tried before the Congregation for the Doctrine of the Faith, for teaching that the Earth orbits the Sun.
1737 - It is the end of the Walking Purchase, which forces the cession of 1.2 million acres of Lenape-Delaware tribal land to the Colony of Pennsylvania.
1863 - The fierce Battle of Chickamauga ends.
1881 - Chester A. Arthur is inaugurated as the 21st President of the United States of America.
1891 - The first gasoline-powered car debuts in Springfield, Massachusetts.
1942 - In the course of two days the German SS murders nearly 3,000 Jews in the area of the Letychiv, Ukraine.
1962 - James Meredith, an African-American, is temporarily barred from entering the University of Mississippi.
1973 - Billie Jean King beats Bobby Riggs in the Battle of the Sexes tennis match at the Houston Astrodome in Texas.
1990 - South Ossetia declares its independence from Georgia.
2001 - In an address to a joint session of Congress and the American people, U.S. President George W. Bush declares a "war on terror."