In 1970, anti-war protesters attacked the University of Wisconsin’s campus in Madison, killing one person and damaging more than 50 buildings. During the 1970s and 1980s, Puerto Rican nationalist groups claimed responsibility for several bombings, including one at New York’s Fraunces Tavern in 1975 that killed four people.
Many consider assassinations as terrorism, depending on the assassin’s reason for committing the crime. Two Presidential assassinations could be considered acts of terrorism: Abraham Lincoln’s assassination in April 1865 at the hands of Confederate sympathizer John Wilkes Booth, and William McKinley in September 1901 at the hands of anarchist Leon Czolgosz.
Until the September 11 bombings, the April 1993 bombing of the Murrah Federal Building in Oklahoma City was the most deadly terrorist attack on American soil. The bombing killed 168 people; several victims were children because there was a day care center in the building. The bomber, Timothy McVeigh, was a Gulf War veteran who claimed his act was one of revenge on the U.S. government for killing members of a fringe militia group in Waco, Texas.