The meaning of terrorism is the unlawful use or threatened use of force or violence by people or an organized group against people or the property with the intention of intimidating or coercing societies, governments offer for ideological political reasons. Terrorism was not an invention of modern times, but the use of terrorism as a political weapon has along history. The word of terrorism comes from the French revolution, where it was used as an instrument of state of policy. Terror was employed to eliminate counterrevolutionary elements in the population, save France from anarchy and military defeat. Modern terrorism arose in Tsarist Russia in the 1870's and terrorist tactics were subsequently adopted by some dissident groups in the ottoman and British Empire and by some anarchists in the United States and Western Europe. Late nineteenth and early twentieth century terrorism typically took the form of assassination attempts on heads of state and bomb attacks on buildings.
Terrorism was generally ideologically inspired. For instance the assassination of the archduke Franz Ferdinand of the Austro- Hungarian in 1914 marked the beginning of a new phase in the history of terrorism. During the 1920's and 1930's they viewed terrorism in another form, right wing fascist terror, as Hitler's brown shirts and Mussolini's black shirts used murder and violent intimidation to achieve political power and attack specific elements in the population.
Terrorism emerged on the world stage with the 1972 murder of eleven Israeli athletes at the 1972 Munich Olympics, in an effort to end Israeli occupation of their territories and establish a Palestinian homeland. The most feared group the Abu Nidal organization which split from the Palestinian liberation organization in 1974.
On February 26, 1993 an explosion had occurred on the world trade center bombing in New York City. At approximately 12.18 p.m.,