What is a good thesis statement for Nebuchadnezzar Cyrus the great Darius Xerxes Babylonia ND and hanging gardens?

Thesis Statement: The reigns of Nebuchadnezzar, Cyrus the Great, Darius, and Xerxes mark a significant period in ancient history, characterized by remarkable achievements, cultural advancements, and the construction of iconic structures such as Babylon and the Hanging Gardens, leaving a lasting legacy on the world.