On October 10, 1767, Charles Mason and Jeremiah Dixon complete their survey of the boundary between the colonies of Pennsylvania and Maryland as well as areas that would eventually become the states of Delaware and West Virginia. The Penn and Calvert families had hired Mason and Dixon, English surveyors, to settle their dispute over the boundary between their two proprietary colonies, Pennsylvania and Maryland.

On October 10, 1877, the U.S. Army holds a West Point funeral with full military honors for Lieutenant-Colonel George Armstrong Custer. Killed the previous year in Montana by Sioux and Cheyenne Indians at the Battle of the Little Big Horn, Custer’s body had been returned to the East for burial on the grounds of the U.S. Military Academy at West Point, New York, where Custer had graduated in 1861—at the bottom of his class.

During the Battle of Britain, the German Luftwaffe launches a heavy nighttime air raid on London. The dome of St. Paul’s Cathedral is pierced by a Nazi bomb, leaving the high altar in ruin. It was one of the few occasions that the 17th-century cathedral suffered significant damage during Germany’s nearly ceaseless bombing raids on London in the fall of 1940.

In the conclusion to an extremely embarrassing situation, President Dwight D. Eisenhower offers his apologies to Ghanian Finance Minister, Komla Agbeli Gbedemah, who had been refused service at a restaurant in Dover, Delaware. It was one of the first of many such incidents in which African diplomats were confronted with racial segregation in the United States.

On October 10, 1985, the hijacking of the Italian cruise ship Achille Lauro reaches a dramatic climax when U.S. Navy F-14 fighters intercept an Egyptian airliner attempting to fly the Palestinian hijackers to freedom and force the jet to land at a NATO base in Sigonella, Sicily. American and Italian troops surrounded the plane, and the terrorists were taken into Italian custody.

Former U.S. postal worker Joseph Harris shoots two former co-workers to death at the post office in Ridgewood, New Jersey. The night before, Harris had killed his former supervisor, Carol Ott, with a three-foot samurai sword, and shot her fiance, Cornelius Kasten, in their home. After a four-hour standoff with police at the post office, Harris was arrested.

On October 10, 2004, the actor Christopher Reeve, who became famous for his starring role in four Superman films, dies from heart failure at the age of 52 at a hospital near his home in Westchester County, New York. Reeve, who was paralyzed in a 1995 horse-riding accident, was a leading advocate for spinal cord research.