Cyrus the Great, the founder of the Persian Empire, conquered various other empires during his reign. One of the empires conquered by Cyrus the Great was the Babylonian Empire. By defeating the Babylonians in 539 BC, Cyrus extended his empire's influence and control over the region, including the city of Babylon itself. This conquest is historically significant as it marked the downfall of the Babylonian Empire and the rise of the Persian Empire as a dominant power in the ancient world.
In addition to the Babylonian Empire, Cyrus the Great also conquered the Median Empire, which was his first major conquest. By defeating the Medes in 550 BC, Cyrus united the Medes and the Persians under his rule, laying the foundation for the Achaemenid Empire, commonly known as the Persian Empire. This consolidation of power over the Medes and Persians was a crucial step in Cyrus's path to becoming one of the most influential rulers in ancient history.
In summary, Cyrus the Great conquered the Babylonian Empire and the Median Empire during his reign, expanding the territories under his control and establishing the Persian Empire as a dominant force in the ancient world.