Collapse of the Tibetan Empire

Timeline

1. 841–842Lhasa · TibetTsenpo Langdarma broadly banned and destroyed Buddhist monasteries and scriptures, weakening the monastic establishment, provoking sharp conflict between the ruling elite and religious forces, and shaking the empire's central authority.
2. 842Lhasa · TibetLangdarma was assassinated, succession disputes intensified, nobles across the regions backed rival tsenpos, the central government existed in name only, and full-scale civil war soon erupted.
3. 842–843Tibetan Plateau · TibetThe unified Tibetan state collapsed; nobles in Ü-Tsang, Kham, and Ngari each ruled independently, creating long-term fragmentation, and the Tibetan Empire's history as an East Asian great power came to an end.