In the last major battle of the War of the Roses, King Richard III is defeated and killed at the Battle of Bosworth Field by Henry Tudor, the earl of Richmond. After the battle, the royal crown, which Richard had worn into the fray, was picked out of a bush and placed on Henry’s head. His crowning as King Henry VII inaugurated the rule of the house of Tudor over England, a dynasty that would last until Queen Elizabeth’s death in 1603.

On August 22, 1851, the U.S.-built schooner America bests a fleet of Britain’s finest ships in a race around England’s Isle of Wight. The ornate silver trophy won by the America was later donated to the New York Yacht Club on condition that it be forever placed in international competition. Today, the “America’s Cup” is the world’s oldest continually contested sporting trophy and represents the pinnacle of international sailing yacht competition.

The Geneva Convention of 1864 for the Amelioration of the Condition of the Wounded and Sick of Armies in the Field is adopted by 12 nations meeting in Geneva. The agreement, advocated by Swiss humanitarian Jean-Henri Dunant, called for nonpartisan care to the sick and wounded in times of war and provided for the neutrality of medical personnel. It also proposed the use of an international emblem to mark medical personnel and supplies. In honor of Dunant’s nationality, a red cross on a white background—the Swiss flag in reverse—was chosen. The organization became known as the International Committee of the Red Cross. In 1901, Dunant was awarded the first Nobel Peace Prize.

An amateur painter sets up his easel near Leonardo da Vinci’s Mona Lisa at the Louvre in Paris, only to discover that the masterpiece is missing. Earlier in the day, in perhaps the most brazen art theft of all time, Vincenzo Perugia had walked into the Louvre, removed the famed painting from the wall, hid it beneath his clothes, and escaped.

Annie Proulx, author of celebrated books and stories including The Shipping News and "Brokeback Mountain," is born on August 22, 1935 in Norwich, Connecticut. Her mother was a painter and her father a self-made executive in a textile company.

At San Francisco's Candlestick Park on August 22, 1965, Giants pitcher Juan Marichal steps up to the plate to lead off the home half of the third inning against the Los Angeles Dodgers. After the second pitch, a ball low and away, catcher John Roseboro returns the ball to pitcher Sandy Koufax, but he offends Marichal by throwing it close to his head. Marichal’s reaction is unprecedented—he attacks Roseboro, hitting him in the head with his bat and setting off an epic, 14-minute brawl.

In the streets of Prague and in the United Nations headquarters in New York City, Czechs protest against the Soviet invasion of their nation. The protests served to highlight the brutality of the Soviet action and to rally worldwide condemnation of the Soviet Union.

Delegates entering the Republican National Convention in Miami Beach are harassed by 3,000 antiwar demonstrators, many painted with death masks. The rest of the convention is marked by demonstrations outside the meeting hall; hundreds of protestors are arrested and many are injured when police use riot-control agents.