Aug. 22 (UPI) -- On this date in history:
In 1851, the U.S.-built schooner America outran a fleet of Britain's finest ships around England's Isle of Wight in an international race that became known as the America's Cup.
In 1881, American humanitarians Clara Barton and Adolphus Solomons founded the National Red Cross.
In 1911, Leonardo da Vinci's "Mona Lisa" was discovered stolen from the Louvre Museum in Paris. It was recovered two years later.
In 1922, Michael Collins, a founder of the Irish Republican Army and a key figure in Ireland's independence movement, was assassinated by political opponents.
In 1968, Pope Paul VI arrived in Colombia, becoming the first pontiff to visit South America.
In 1986, Kerr-McGee Corp. agreed to pay the estate of nuclear industry worker Karen Silkwood more than $1 million, ending a 10-year legal battle waged by her family over her exposure to radioactive materials at the company's Oklahoma plant.
In 2004, two masked robbers stole Edvard Munch's "The Scream" and another painting from the Munch Museum in Oslo, Norway. They were found about two years later and put back on display in 2008. "The Scream" had been stolen once before, 10 years earlier, but was recovered within three months.
In 2006, the U.S. Food and Drug Administration decided to make the "morning-after" contraceptive pill known as Plan B available without a prescription to people 18 and older.
In 2013, former New England Patriots tight end Aaron Hernandez was indicted on a first-degree murder charge in the death of Odin Lloyd, a 27-year-old landscaper and acquaintance of the football player. In 2014, Hernandez was charged with two more murders. Hernandez killed himself in prison this spring.
In 2014, the United Nations reported that the death toll in three years of Syria's civil war had surpassed 191,000.