Changes

In the 1830s, it became precedent that the Sovereign would select the Prime Minister, which is still the case technically, although the precedent is that the election would reflect which party should lead the government and the Sovereign formally allowing this result. This system payed homage to the old role that a prime minister was is a leading adviser who served for the benefit of the monarch, although in reality the role of Prime Minister meant this person now would hold more formal power than the monarch and lead government. Before 1902, the Prime Minister could derive from the House of Lords, which often had final authority on law and could overrule the House of Commons (Figure 2). However, in 1911, the House of Lords became marginalised, with the House of Commons gaining extra powerto create law. During the 19th century, British power was emulated by many countries, which began the practice of many countries in Europe and elsewhere by the 20th century creating the post of "Prime Minister." Meanwhile, the post of Prime Minister in the UK continued to evolve. Women soon gained the right to vote in 1918 and 1928; the House of Commons continued to gain power during this time. During the early 20th century, prime ministers began to also derive from republics and not only monarchies. What contrasted this form or style of government is that the party would select its leader, rather than being directly elected as head of stateas in a presidential system, and the party that wins an election would enable its leader to be the formal Prime Minister.<ref>For more on the 19th century reforms to the role of Prime Minister, see: Quinault, Roland E. 2011. <i>British Prime Ministers and Democracy: From Disraeli to Blair</i>. London ; New York, NY: Continuum.</ref>

Although initially the Prime Minister usually reflected a given party winning, some countries began to merge and blend Presidential presidential systems with that of a Parliamentary systemparliamentary systems, whereby the Prime Minister was sometimes directly elected (e.g., Israel). Some countries, such as France, have a dual system of President and Prime Minister, where sometimes one has more power than the other or the two co-exist as a type of check and balance situation. Most of the world's government governments have emulated and/or modified the British system, although in North and South America many countries there use the Presidential presidential system similar to the United States.<ref>For more on how different countries modified and adapted the role of Prime Minister in their governments, see: Samuels, David, and Matthew Soberg Shugart. 2010. <i>Presidents, Parties, and Prime Ministers: How the Separation of Powers Affects Party Organization and Behavior</i>. Cambridge ; New York: Cambridge University Press. </ref>