ON THIS DATE

American boxer Marvin Hagler, a durable middleweight champion who was one of the greatest boxers of the 1970s and ’80s, died at age 66.

2020: Breonna Taylor, an African-American EMT, was killed by Louisville, Kentucky, police officers as they burst into her apartment during a botched raid; her death led to massive protests by Black

Lives Matter activists and others who called for police reform.

2013: Jorge Mario Bergoglio, the archbishop of Buenos Aires, was elected pope of the Roman Catholic Church; taking the name Francis I, he succeeded Benedict XVI, who had resigned.

2012: Encyclopaedia Britannica Inc. announced that it was ceasing publication of its print version, the oldest and longest continually published English-language general print encyclopedia.

1996: A gunman invaded a primary school in the small Scottish town of Dunblane and shot to death 16 young children and their teacher, then turned a gun on himself; the school shooting resulted in various changes to British gun laws.

1925: The Tennessee legislature passed a bill that banned the teaching of Charles Darwin’s theory of evolution in the state’s public schools; in a highly publicized trial, highschool teacher John T. Scopes was later convicted of breaking the law.

1886: American aerial photographer Albert W. Stevens, who took the first photograph of Earth’s curvature (1930) and the first photographs of the Moon’s shadow on Earth during a solar eclipse (1932), was born in Belfast, Maine.

1781: English astronomer William Herschel observed on this day in 1781 the seventh planet from the Sun, Uranus — named for the father of the Roman god Saturn.