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Foundation of the Assassins' Alamut Fortress

Type Event Region West Asia Time 1090

Hassan-i Sabbah seized Alamut Castle in Iran's Elburz Mountains with Ismaili followers, establishing the Nizari Ismaili base that became the core str…

Timeline

  1. 1088–1090Elburz Mountains · IranHassan-i Sabbah preached and gathered followers in Khorasan and Daylam, exploiting Seljuk succession turmoil to gradually gain control of Alamut Castle's garrison and surrounding villages through conversion and infiltration.
  2. 1090Alamut Castle · IranHassan-i Sabbah formally seized Alamut Castle, proclaiming the establishment of an independent religious-military community; he thereafter expanded defenses and set up a propaganda network, making it the center of the Nizari 'New Preaching' movement.

Sources