<span>Mesopotamia means “the land between the rivers” in Greek.
those rivers are Tigris and </span><span>Euphrates</span>
I believe it would be Dickens and Twain !! Both were social critics.
I believe the answer is: scientific stage
In the scientific stage of societal develoment, people start to rely more on empirical evidence to drive their decision rather than religion or any forms of diety. In this stage of development, innovations would start to flourish and society tend to keep inventing things that increase their prosperity.
The Spartans were very good in hand to hand combat. The Athens had a very successful navy. The Athens made an invention of the ships so that, under multiple people at once would row and it would have to stay in that motion. There is more but I don't know what lesson you are on...