Hasashins

from 'How to Start a Fun and Popular Club,' by Hasan-i Sabbah:

"...This enthusiastic group was said to be a secretive Islamic sect of ascetic religious fanatics that carried out political murder. They came into being at the end of the 11th century and lasted for about a 150 years until their impregnable cliffside castle in Persia was breached by the Mongols.

Some regard them as being the first terrorists, sowing the seeds of terrorist thought and tactics in the Islamic world. I personally think they were a club of fun and interesting guys who liked to jump between buildings and dive into haystacks." ...