The Sumerians were the first people to migrate to Mesopotamia, they created a great civilization. Beginning around 5,500 years ago, the Sumerians built cities along the rivers in Lower Mesopotamia, specialized, cooperated, and made many advances in technology. The wheel, plow, and writing (a system which we call cuneiform) are examples of their achievements.
1 In a Parliamentary System, the head of state is usually a different person than the head of government (not in every country). 2  The HOG is often vested with more official power, but holds that position for a relatively short time.
Presidential Government VS Parliamentary Government. Canada and the U.S. are ruled under two different political systems of government which are parliamentary government and presidential government.These two government systems are the most fundamental and dominant government methods in the world.t will provide on the characteristics of parliamentary system and also characteristics of the presidential system. Moreover, comparison of main elements of these two systems will be examined as well. Contemporary examples from both the Canadian and the U.S system will be illustrated to strengthen main differences.