Cyrus the Great is the Persian king celebrated for his exceptional tolerance and administrative skills. He founded the Achaemenid Empire in the 6th century BCE and is notable for his policies of respect toward the cultures and religions of the peoples he conquered. His proclamation, often referred to as the Cyrus Cylinder, is considered one of the earliest declarations of human rights, promoting freedom of worship and protecting the rights of citizens. His innovative administrative system, which included creating satrapies (provinces) governed by satraps, allowed for effective management of his vast empire, setting a standard for future rulers.