The leader of the Persian Empire known for his tolerance and administrative innovations was Cyrus the Great. He founded the Achaemenid Empire in the 6th century BCE and is celebrated for establishing policies that respected the customs and religions of the lands he conquered. His promotion of a centralized bureaucratic administration and the Cyrus Cylinder, often regarded as one of the first charters of human rights, reflect his progressive approach to governance, setting standards for future empires in terms of tolerance and civil administration.