Persepolis & The Persian Empire

Achaemenid Empire or Achaemenian Empire, also known as the Persian Empire or First Persian Empire, was an Iranian empire founded by Cyrus the Great of the Achaemenid dynasty in 550 BC. Based in modern-day Iran, it was the largest empire by that point in history, spanning a total of 5.5 e6sqkm. The empire spanned from the Balkans and Egypt in the west, West Asia as the base, the majority of Central Asia to the northeast, and the Indus Valley to the southeast.

The Plurality of the Persian Empire: Part I – The Achaemenids to the Sassanians.

https://www.ancient-origins.net/history-important-events/persian-empire-0010510

The Plurality of the Persian Empire: Part II - Persian Dynasties and a New Breed of Rulers Arise

https://www.ancient-origins.net/history-important-events/persian-dynasty-0010515

Satraps of the Persian Empire – Rebellious Protectors of the Realm

https://www.ancient-origins.net/ancient-places-asia/persian-satrap-0012611