Babylonia was located in Mesopotamia, in the Near East same geographical position as Modern Iraq. Two main rivers flowed through Babylonia which were the Tigris and the Euphrates. Summer climate is hot and dry, winter is cold and wet. Its position and climate, made Babylon an ideal place for trading. Northly they could trade up the river to Syria and beyond and could act as a staging post with the cities of Sumer to the south, important for its economic growth which contributed a lot to the development of the Babylonian empire.
The transcontinental railroad allowed for the transportation of goods over long distances. This was especially helpful for the industrial north at the time.
The lack of new factory jobs in the North was not an economic problem facing the United States at the end of the Civil War. The others were all quite serious problems.