The major difference between these two systems is that in a Presidential system, the executive leader( President) is directly voted upon by the people (Or via a body elected specifically for the purpose of electing the president, and no other purpose), and the executive leader of the Parliamentary system, the Prime Minister, is elected from the legislative branch directly.
Answer: The presidential form of government are different from the parliamentary form of government because presidential government are for politics, and the parliamentary government are part of the parliament party.
Answer: As a result of the Renaissance in Europe, information spread more easily and new knowledge and technology helped seafaring nations broaden trade, increase wealth and gain power.