Why was Mesopotamia so heavily populated compared to other areas of the world? -Please list sources.

Many years ago... Before it was a desert. It was a land full of resources, flora and fauna. So... Naturally humanity would go to the place with the best resources. It also became a holy land, exalted by islam, christianity, and judaism. For some reason however, with the volatile state the sovereign nations are in. They stay...

christopher columbus (1492–1504)

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )