Terrorism is the unlawful use of force or violence against persons or property to intimidate or coerce a government, the civilian population, or any segment thereof, in furtherance of political or social objectives. Terrorism is not just something that developed during the 1900s. Throughout modern history, terrorism has been happening around the world. During the 18th century, Russia catapulted corpses infected with the plague into positions held by Sweden. This was one of the earliest uses of biological agents as a weapon of terrorism. Smallpox has been used on several occasions as a biological weapon. During the French and Indian War of 1754, British troops provided blankets that had been infected with smallpox to the American Indians. Native Americans defending Fort Carillon sustained epidemic injures of smallpox which directly contributed to the loss of the fort to the English. During the 19th century, when President Lincoln and 12 other public officials were assassinated, these were acts of terrorism connected to the Civil War. Ku Klux Klan groups began acts of terrorism against African Americans that included the use of devices, arson, bombings, and murder. Terrorist incidents have been going on in U.S.