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 presidential system, the legislature and the executive do not have to be aligned and often work against each other. 2  Policy implementation can be much slower and more moderated, at least in the US system.
However, parliamentary systems have nothing to do with any of this. India, Switzerland, Germany, and Canada are are federations that have parliamentary governments. One has nothing to do with the other. A parliamentary government contrasts with a presidential or semi-presidential government, or with a dictatorship. These are different ways of dividing government power at the national level, not different ways of dividing power between national and regional governments.