On this date
In 1901, President William McKinley was shot and mortally wounded by anarchist Leon Czolgosz at the Pan-American Exposition in Buffalo, New York. (McKinley died eight days later and was succeeded by his vice president, Theodore Roosevelt.)
In 1949, Howard Unruh, a resident of Camden, New Jersey, shot and killed 13 of his neighbors. (Unruh, who was diagnosed with paranoid schizophrenia, was incarcerated for 60 years until his death in 2009.)
In 1975, 18-year-old tennis star Martina Navratilova of Czechoslovakia, in New York for the U.S. Open, requested political asylum in the United States.
In 1995, Baltimore Oriole Cal Ripken Jr. played in his 2,131st consecutive game, breaking Lou Gehrig's 56 year-old MLB record; Ripken's streak would ultimately reach a still-record 2,632