The Iranian Revolution in 1979 had a significant impact on the world in several ways: 1. Destabilization of the Middle East: The revolution and the establishment of an Islamic republic led by Ayatollah Khomeini caused political instability in the region. This had far-reaching consequences for neighboring countries and the broader Middle East, leading to conflicts and tensions that still exist today. 2. Anti-Western sentiment: The revolution was heavily anti-Western, with the US seen as a major supporter of the Shah's regime.