Today is Monday, April 21, the 111th day of 2025. There are 254 days left in the year.

On April 21, 2016, Prince, one of the most inventive and influential musicians of modern times, was found dead at his home in suburban Minneapolis from an accidental fentanyl overdose; he was 57.

In 1836, an army of Texans, led by Sam Houston, defeated the Mexican Army, led by Antonio López de Santa Anna, in the Battle of San Jacinto, the final battle of the Texas Revolution.

In 1910, author Samuel Langhorne Clemens, better known as Mark Twain, died in Redding, Connecticut, at age 74.

In 1918, German Air Force pilot Manfred von Richthofen, nicknamed “The Red Baron,” was killed at age 25 after being shot during a World War I air battle over Vaux-sur-Somme, France.

In 1930, fire broke out inside the overcrowded Ohio Penitentiary in Columbus, killing 322 inmates in the deadliest prison disaster in U.S. history.

In 1975, with Communist forces closing in, South Vietnamese President Nguyễn Văn Thiệu resigned after nearly 10 years in office, fleeing the country five days later.

In 1980, Rosie Ruiz was the first woman to cross the finish line at the Boston Marathon, but was later exposed as having cheated by entering the racecourse less than 1 mile (1.6 kilometers) before the finish line. (Canadian Jacqueline Gareau was named the actual winner of the women’s race.)

In 2015, an Egyptian criminal court sentenced ousted Islamist President Mohammed Morsi to 20 years in prison over the killing of protesters in 2012. (Morsi collapsed and died during trial on espionage charges in June 2019.)