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.
In a Presidential Government, many executive, financial and legal powers are concentrated in the hands of the President and he can use his discretion in many matters.In a Presidential Government, there is sometimes non-co-operation between the Executive and the Legislature and a great difficulty is faced by the President in obtaining the approval for the foreign aid programme .Another drawback of the Presidential government is that the people or the Parliament have no control over the daily ...