A parliament is a type of legislature, or law-making body, of a state. Generally, a parliament has three functions: representing the electorate, making laws, and overseeing the executive government via hearings and inquiries. Its role is similar to that of a senate, synod or congress; a parliament is the institutional form of parliamentary systems based on the fusion of powers. The term parliament is commonly used in countries that are current or former monarchies. Some contexts restrict the use of the word to parliamentary systems, although it is also used to describe the legislature in some presidential systems (e.g., the Parliament of Ghana), even where it is not in the official name. A parliament is typically made up of elected members, who are legislators.
Historically, parliaments included various kinds of deliberative, consultative, and judicial assemblies. Parliamentary gatherings in the Middle Ages began to establish that monarchs were subject to law and first summoned representatives of common people, notably the Cortes of León in 1188, and an English parliament in 1265, which developed into an enduring House of Commons. During the early modern period, the Glorious Revolution of 1688 in Britain established the primacy of parliamentary sovereignty, through which the rule of law could be enforced. Many other modern concepts of parliamentary government developed in the Kingdom of Great Britain (1707–1800) and were later exported to other countries around the world. The revolutions of 1848 in Europe largely failed to strengthen parliaments in most European countries, as conservative forces regained control and reversed changes, but they made a return to the pre-1848 status quo impossible, leading to gradual, long-term parliamentary development across much of Europe. Expansion of suffrage in the 19th and 20th centuries led to many parliaments around the world becoming democratically elected.
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