It affected their social lives, and there was very little trade between the two regions (the only ones around.) They also needed many people. They developed irrigation and drainage systems which caused many people to work.
The reason is that there is a water shortage happening there. They needed to conserve water and be supplied from sources. Right now there are strict measures in the use of water in that area to ensure that it does not go to waste.
The motto, "<span>E pluribus unum" appears on the obverse side of the Great Seal of the United States</span>
