thanks for sharing Your attention.
This is a meme about the Islamic Revolution in Iran which started in 1978 and intensified after the sovereign Shah Rezah Pahlvi was exiled in early 1979. It ended in 1980 by the proclamation of the Islamic Republic of Iran by Ayatollah Khomeini, a theocratic religious leader.
for further information kindly refer to:
https://en.wikipedia.org/wiki/Iranian_Revolution
Yea I know. I have actually met some Pahlavis, it did not start in 1978, it came to a boil. The issues go way back, are complicated, and the USA shares much burdon.
The riots of the Revolution broke out in 1978. But you're right - there were tensions long before as one would expect.
For an indepth-analysis of US actions and envolvement btw I recommend the publications of Dr. Michael D. Evans, who is regarded one of America's top experts on Israel and the Middle East. His books have excellent reviews on Amazon as well.