How many kings did ancient Persia had?

Answer 1

Ancient Persia, particularly under the Achaemenid Empire, had a series of kings known as "Shahs." The number of kings can vary depending on the historical period considered, but the most notable rulers from the Achaemenid dynasty include Cyrus the Great, Darius I, and Xerxes I, among others. Overall, there were about 16 prominent kings in the Achaemenid line from its founding in the 6th century BCE until its fall in the 4th century BCE. Other dynasties, such as the Parthians and Sassanids, also contributed additional rulers to Persia's history.