it's not even accurate. before the revolution shah recrowned himself and threw a party for the 2500 anniversary of the crowning of cyrus the great (some reactionary bullshit about claiming a return to the glory of the past or whatever), he even tried to change the starting year of the calendar to 2500 years ago. sadly due to very bad historical education in iran and monarchist propaganda most people still say iranian civilization is 2500 years old despite archeological records showing that civilization in iran probably dates back to almost 6000 years ago.
it's not even accurate. before the revolution shah recrowned himself and threw a party for the 2500 anniversary of the crowning of cyrus the great (some reactionary bullshit about claiming a return to the glory of the past or whatever), he even tried to change the starting year of the calendar to 2500 years ago. sadly due to very bad historical education in iran and monarchist propaganda most people still say iranian civilization is 2500 years old despite archeological records showing that civilization in iran probably dates back to almost 6000 years ago.