In places like Uruk and Eridu in modern-day Iraq, humans founded the first cities nearly 6,000 years ago. They left us literature, astronomy, and mathematics, as well as lessons in overpopulation and environmental stewardship.
Beginning 5,000 years ago, the "Land of the Seven Rivers" cultivated a tradition of nonviolence, renunciation of the material world, and a focus on humans' inner life. Today, these ideas survive in tension with the vestiges of Western colonialism.