In 3,000 BC Uruk was more densely

populated than modern day New York City This is the tale of two ancient cities and the trees that determined their destinies. In 3,000 BC Uruk was more densely populated than modern day New York City. This crowded capital had to continually expand their irrigation systemto feed its growing population.years later in Sri Lanka, the city of Anuradhapura had a similar problem.They were also growing constantly, and like Uruk, their city relied heavily on an elaborate irrigation system.