The Iranian Revolution culminated in 1979

 The Iranian Revolution culminated in 1979, with the toppling of the Pahlavi dynasty and the establishment of the Islamic Republic of Iran. The key dates are January 16, 1979, when the Shah left Iran, and February 11, 1979, when the revolution's victory was declared. 

Here's a more detailed breakdown:

• January 16, 1979: The Shah, Mohammad Reza Pahlavi, leaves Iran, fleeing into exile. 
• February 1, 1979: Ayatollah Khomeini, the revolution's leader, returns to Iran from exile. 
• February 11, 1979: The Iranian monarchy officially collapses, marking the victory of the revolution. 
• April 1979: Iranians vote in a referendum to establish the Islamic Republic. 
• November 4, 1979: Iranian militants seize the US embassy in Tehran, initiating the Iran hostage crisis, according to Wikipedia. 

From and including: Tuesday, January 16, 1979

To and including: Monday, June 30, 2025

Result: 16,968 days

2424 weeks