MORE EVENTS ON THIS DAY

2018: American writer Ursula K. Le Guin, who was best known for tales of science fiction and fantasy imbued with concern for character development and language, died at the age of 88. [ Test your knowledge of American writers.]

2012: Joe Paterno—who, as head coach at Penn State (1966–2011), was one of the most successful coaches in the history of collegiate gridiron football but whose final season was overshadowed by a sex-abuse scandal involving a former assistant coach—died at the age of 85. [ Sort fact from fiction in our American football quiz.]

2010: Struggling with ratings, Conan O'Brien left The Tonight Showafter hosting his last episode of the late-night television program. [Take our quiz about pop culture.]

2006: Evo Morales, a member of the Aymara indigenous group, was sworn in as president of Bolivia, becoming the first Indian to hold the office. [ How much do you know about Latin American history?]

1998: One of the most notorious domestic terrorists in U.S. history, Theodore Kaczynski, the so-called Unabomber, who killed three people and injured 22 in 16 attacks between 1979 and 1995, was sentenced to four terms of life in prison without parole.

1992: Serving as a payload specialist aboard the Discovery space shuttle, Roberta Bondar became the first Canadian woman and the first neurologist to travel into space. [Test your knowledge of famous astronauts and cosmonauts.]