What happened on this land around c. 1960–1994 CE (Cold War era, late Pahlavi, revolution, and aftermath up to 1994) ?

White Revolution reforms; 1979 Islamic Revolution topples Pahlavi monarchy; 1980s Iran–Iraq War; post-war reconstruction and political consolidation under the Islamic Republic.
Rulers
Mohammad Reza Shah Pahlavi
1941–1979
Autocratic modernization (White Revolution) and close-western alignment until 1979.
Islamic Republic of Iran (post-1979)
1979–present
Theocratic republic established after the 1979 Revolution; new political order.
Battles
Iran–Iraq War
1980–1988
Large-scale war initiated by Iraq; massive casualties and devastation, defining late-20th-century Iran.