Oklahoma City bombing refers to the bombing of the Murrah Federal Building on April 19, 1995, committed by Timothy McVeigh and his accomplices, making it an instance of domestic terrorism. The motivation for the attack was to avenge the deaths of Branch Davidians at Waco, Texas, who McVeigh believed had been murdered by the U.S. Federal Government. There were 168 dead, which made it the worst terrorist attack on U.S. soil until the September 11, 2001 Terrorist Attack.
There is now a giant memorial to the bombing on the site of the Murrah building. It includes a large reflecting pool, two large "doorways", a museum, and a field full of chairs, one for each person lost.
See also terrorist incidents.