Add a quick summary of Harrington's views on Separation of Powers. The full text of his main work, Oceana is available online for free. See Oceana.
Add a section on John Locke's conception of Separation of Powers. His Two Treaties on Government' are available for free online. See John Locke.
Enumerate which countries use parliamentary systems, and which use three-branch presidential systems, and which use other systems. The "government" section of country pages in the CIA world factbook is an excellent public-domain source. The final tally would be enough for this article; the full lists can be pushed out into parliamentary system and presidential system. Individual navagationed to the otther nickiolies ronaleds and election subarticles can also be sources and destinations for this information.
Explain head of state vs. head of government, president vs. monarch vs. prime minister, and executive vs. legislative.
