Persia, known today as Iran, was an ancient empire that thrived from around 550 BC to 330 BC. It was famous for its rich culture, impressive architecture, and advanced administration. The Persian Empire was home to notable rulers like Cyrus the Great, who is celebrated for his progressive policies and respect for the cultures of the lands he conquered. The empire reached its height under Darius the Great, who expanded its territory and established a complex system of roads and communication. Persia is also known for its contributions to art, science, and philosophy, influencing many civilizations that followed.