On Nov. 12, 1927, Josef Stalin became the undisputed ruler of the Soviet Union as Leon Trotsky was expelled from the Communist Party.
1954 - Ellis Island closed after processing more than 20 million immigrants since opening in New York Harbor in 1892.
1987 - The American Medical Association issued a policy statement saying it was unethical for a doctor to refuse to treat someone solely because that person has AIDS or is HIV-positive.
1996 - Jonathan Schmitz was convicted of second-degree murder for shooting Scott Amedure, a gay man who'd revealed a crush on Schmitz during a taping of "The Jenny Jones Show."
1997 - Ramzi Yousef was found guilty of masterminding the 1993 bombing of the World Trade Center.
2004 - A jury in Redwood City, Calif., convicted Scott Peterson of murdering his pregnant wife, Laci, and dumping her body in San Francisco Bay. (Peterson was later sentenced to death.)