Hasan-i Sabbah

Timeline

1. 1051–1055Rayy · KhorasanHasan-i Sabbah was born or raised in a Shi'a community in Khorasan–Jibal (central Iran), receiving early education in the complex religious environment of Seljuk expansion alongside Abbasid Sunni orthodoxy, laying the intellectual groundwork for his later turn to the Ismaili secret da'wa network.
2. 1056–1060Nishapur · KhorasanAs a young man Hasan-i Sabbah went to Nishapur to study, encountering the flourishing Islamic jurisprudential and theological debates of the day. Traditional sources record him as a fellow student of the future Seljuk vizier Nizam al-Mulk and the poet Omar Khayyam; though details are disputed, the Nishapur period was indeed key to his intellectual formation and to meeting future political-religious network figures.