Answer:
Uruk is the correct answer.
Explanation:
City of Uruk was a city of Mesopotamian civilisation and was one of the major cities of ancient world and it reached its peak around 2900 BC. It had a population of more than 70,000 people. This city was located in the southern Mesopotamia and was situated along the banks of Euphrates River and was the centre of Sumerian Civilisation. The city grew rich due to advance farming and irrigation techniques. One of the most notable personalities of Uruk was Gilgamesh. The epic of Gilgamesh tells about his exploits.
A slave was not a citizen but rather the property of an owner
The Great Depression, it wasn't that great though.
Do you mean how long does it take to get to the moon and mars it might me 300 days