
A legislature (, ) is a
deliberative assembly
A deliberative assembly is a meeting of members who use parliamentary procedure.
Etymology
In a speech to the electorate at Bristol in 1774, Edmund Burke
Edmund Burke (; 12 January ew Style, NS1729 – 9 July 1797) was an Anglo-Irish Po ...
with the
legal authority to make
laws for a
political entity such as a
country
A country is a distinct part of the world, such as a state, nation, or other political entity. When referring to a specific polity, the term "country" may refer to a sovereign state, state with limited recognition, constituent country, ...
,
nation
A nation is a type of social organization where a collective Identity (social science), identity, a national identity, has emerged from a combination of shared features across a given population, such as language, history, ethnicity, culture, t ...
or
city
A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agree ...
on behalf of the people therein. They are often contrasted with the
executive and
judicial
The judiciary (also known as the judicial system, judicature, judicial branch, judiciative branch, and court or judiciary system) is the system of courts that adjudicates legal disputes/disagreements and interprets, defends, and applies the law ...
powers of
government
A government is the system or group of people governing an organized community, generally a State (polity), state.
In the case of its broad associative definition, government normally consists of legislature, executive (government), execu ...
. Legislatures can exist at different levels of government–national, state/provincial/regional, local, even supranational (such as the
European Parliament
The European Parliament (EP) is one of the two legislative bodies of the European Union and one of its seven institutions. Together with the Council of the European Union (known as the Council and informally as the Council of Ministers), it ...
). Countries differ as to what extent they grant deliberative assemblies at the subnational law-making power, as opposed to purely administrative responsibilities.
Laws enacted by legislatures are usually known as
primary legislation. In addition, legislatures may observe and steer governing actions, with authority to amend the budget involved.
The members of a legislature are called legislators. In a democracy, legislators are most commonly popularly
elected, although
indirect election and appointment by the executive are also used, particularly for
bicameral
Bicameralism is a type of legislature that is divided into two separate Deliberative assembly, assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate ...
legislatures featuring an
upper house
An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...
.
Terminology

The name used to refer to a legislative body varies by country.
Common names include:
*
Assembly (from Old French , cf. assemble)
*
Congress
A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...
(from Latin , "having gone together")
*
Council
A council is a group of people who come together to consult, deliberate, or make decisions. A council may function as a legislature, especially at a town, city or county/shire level, but most legislative bodies at the state/provincial or natio ...
(from Latin , "calling out with, uniting")
*
Diet (from Ancient Greek , "lifestyle, discussion, decision")
*
Estates or States (from Old French , "condition, state, the state")
*
Parliament
In modern politics and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: Representation (politics), representing the Election#Suffrage, electorate, making laws, and overseeing ...
(from Old French , "talking")
By names:
*
Chamber of Deputies
The chamber of deputies is the lower house in many bicameral legislatures and the sole house in some unicameral legislatures.
Description
Historically, French Chamber of Deputies was the lower house of the French Parliament during the Bourb ...
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Chamber of Representatives
*
House of Assembly
House of Assembly is a name given to the legislature or lower house of a bicameral parliament. In some countries this may be at a subnational level.
Historically, in British Crown colonies as the colony gained more internal responsible g ...
*
House of Chiefs
A house is a single-unit residential building. It may range in complexity from a rudimentary hut to a complex structure of wood, masonry, concrete or other material, outfitted with plumbing, electrical, and heating, ventilation, and air ...
*
House of Representatives
House of Representatives is the name of legislative bodies in many countries and sub-national entities. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often ...
*
Legislative assembly
*
Legislative council
A legislative council is the legislature, or one of the legislative chambers, of a nation, colony, or subnational division such as a province or state. It was commonly used to label unicameral or upper house legislative bodies in the Brit ...
*
National Assembly
In politics, a national assembly is either a unicameral legislature, the lower house of a bicameral legislature, or both houses of a bicameral legislature together. In the English language it generally means "an assembly composed of the repr ...
*
Senate
A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
By languages:
*
Cortes (from Spanish , "courts")
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Duma (from Russian , "thought")
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Knesset
The Knesset ( , ) is the Unicameralism, unicameral legislature of Israel.
The Knesset passes all laws, elects the President of Israel, president and Prime Minister of Israel, prime minister, approves the Cabinet of Israel, cabinet, and supe ...
(from Hebrew , "meeting")
*
Majlis (from Arabic , "sitting room")
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Oireachtas
The Oireachtas ( ; ), sometimes referred to as Oireachtas Éireann, is the Bicameralism, bicameral parliament of Republic of Ireland, Ireland. The Oireachtas consists of the president of Ireland and the two houses of the Oireachtas (): a house ...
(From Irish ''airecht/oireacht'', "deliberative assembly of freemen")
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Rada (from Polish , "'advice, decision")
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Reichstag (from German , "assembly of the empire")
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Landtag
A ''Landtag'' (State Diet) is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence ...
(from German , "assembly of the country")
*
Sansad (from Sanskrit , "assembly")
*
Sejm
The Sejm (), officially known as the Sejm of the Republic of Poland (), is the lower house of the bicameralism, bicameral parliament of Poland.
The Sejm has been the highest governing body of the Third Polish Republic since the Polish People' ...
(from Polish , "take with, assembly")
*
Soviet
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
(from Russian , "council")
*
Thing (from Proto-Germanic ''*þingą'', "meeting, matter discussed at a meeting")
**
Husting (from Old Norse , "house meeting")
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Veche
A ''veche'' was a popular assembly during the Middle Ages. The ''veche'' is mentioned during the times of Kievan Rus' and it later became a powerful institution in Russian cities such as Veliky Novgorod, Novgorod and Pskov, where the ''veche'' a ...
(from Old East Slavic , "council, agreement")
Though the specific roles for each legislature differ by location, they all aim to serve the same purpose of appointing officials to represent their citizens to determine appropriate
legislation for the country.
History
Among the earliest recognised formal legislatures was the
Athenian
Athens ( ) is the Capital city, capital and List of cities and towns in Greece, largest city of Greece. A significant coastal urban area in the Mediterranean, Athens is also the capital of the Attica (region), Attica region and is the southe ...
''
Ecclesia.''
In the
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
, European monarchs would host assemblies of the nobility, which would later develop into predecessors of modern legislatures.
These were often named
the Estates
The Estates, also known as the States (, , , Hungarian: Rendek), was the assembly of the representatives of the estates of the realm, the divisions of society in feudal times, called together for purposes of deliberation, legislation or taxatio ...
. The oldest surviving legislature is the
Iceland
Iceland is a Nordic countries, Nordic island country between the Atlantic Ocean, North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe. It is culturally and politically linked with Europe and is the regi ...
ic
Althing
The (; ), anglicised as Althingi or Althing, is the Parliamentary sovereignty, supreme Parliament, national parliament of Iceland. It is the oldest surviving parliament in the world. The Althing was founded in 930 at ('Thing (assembly), thing ...
, founded in 930 CE.
Functions
Democratic legislatures have six major functions: representation, deliberation, legislation, authorizing expenditure, making governments, and oversight.
Representation
There exist five ways that representation can be achieved in a legislature:
* Formalistically: how the rules of the legislature ensure representation of constituents;
* Symbolically: how the constituents perceive their representatives;
* Descriptively: how well the composition of the legislature matches the demographics of the wider society;
* Substantively: how well representatives actually respond to the needs of their constituents;
* Collectively: how well the representatives represent the interests of the society as a whole.
Deliberation
One of the major functions of a legislature is to discuss and debate issues of major importance to society.
This activity can take place in two forms. In debating legislatures, such as the
Parliament of the United Kingdom
The Parliament of the United Kingdom of Great Britain and Northern Ireland is the supreme legislative body of the United Kingdom, and may also legislate for the Crown Dependencies and the British Overseas Territories. It meets at the Palace ...
, the floor of the legislature frequently sees lively debate.
In contrast, in committee-based legislatures like the
United States Congress
The United States Congress is the legislature, legislative branch of the federal government of the United States. It is a Bicameralism, bicameral legislature, including a Lower house, lower body, the United States House of Representatives, ...
, deliberation takes place in closed committees.
Legislation
While legislatures have nominally the sole power to create laws, the substantive extent of this power depends on details of the political system. In
Westminster-style legislatures the executive (composed of the cabinet) can essentially pass any laws it wants, as it usually has a majority of legislators behind it, kept in check by the party whip, while committee-based legislatures in continental Europe and those in
presidential system
A presidential, strong-president, or single-executive system (sometimes also congressional system) is a form of government in which a head of government (usually titled " president") heads an executive branch that derives its authority and l ...
s of the
Americas
The Americas, sometimes collectively called America, are a landmass comprising the totality of North America and South America.''Webster's New World College Dictionary'', 2010 by Wiley Publishing, Inc., Cleveland, Ohio. When viewed as a sing ...
have more independence in drafting and amending bills.
Authorizing expenditure
The origins of the
power of the purse which legislatures typically have in passing or denying
government budgets goes back to the European assemblies of nobility which the
monarch
A monarch () is a head of stateWebster's II New College Dictionary. "Monarch". Houghton Mifflin. Boston. 2001. p. 707. Life tenure, for life or until abdication, and therefore the head of state of a monarchy. A monarch may exercise the highest ...
s would have to consult before raising taxes.
For this power to be actually effective, the legislature should be able to amend the budget, have an effective committee system, enough time for consideration, as well as access to relevant background information.
Oversight
There are several ways in which the legislature can hold the executive branch (the administration or government) accountable. This can be done through hearings,
questioning,
interpellations,
votes of confidence, the formation of committees.
Parliaments are usually ensured with upholding the rule of law, verifying that public funds are used accountably and efficiently as well as make government processes transparent and actions so that they can be debated by the public and its representatives.
Agora notes that parliamentary systems or political parties in which political leaders can influence or decide which members receive top jobs can lead to passivity amongst members of the party and less challenging of leadership.
Agora notes that this phenomenon is acute if the election of a member is dependent on the support of political leadership.
Function in authoritarian regimes
In contrast to
democratic systems, legislatures under
authoritarianism
Authoritarianism is a political system characterized by the rejection of political plurality, the use of strong central power to preserve the political ''status quo'', and reductions in democracy, separation of powers, civil liberties, and ...
are used to ensure the stability of the power structure by co-opting potential competing interests within the elites, which they achieve by:
* Providing legitimacy;
* Incorporating opponents into the system;
* Providing some representation of outside interests;
* Offering a way to recruit new members to the ruling clique;
* Being a channel through which limited grievances and concessions can be passed.
Internal organization
Each chamber of the legislature consists of a number of legislators who use some form of
parliamentary procedure
Parliamentary procedures are the accepted Procedural law, rules, ethics, and Norm (sociology), customs governing meetings of an deliberative assembly, assembly or organization. Their object is to allow orderly deliberation upon questions of inte ...
to debate political issues and vote on proposed legislation. There must be a certain number of legislators present to carry out these activities; this is called a
quorum.
Some of the responsibilities of a legislature, such as giving first consideration to newly proposed legislation, are usually delegated to
committee
A committee or commission is a body of one or more persons subordinate to a deliberative assembly or other form of organization. A committee may not itself be considered to be a form of assembly or a decision-making body. Usually, an assembly o ...
s made up of a few of the members of the .
The members of a legislature usually represent different
political parties
A political party is an organization that coordinates candidates to compete in a particular area's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific ideological or p ...
; the members from each party generally meet as a
caucus to organize their internal affairs.
Relation to other branches of government
Legislatures vary widely in the amount of
political
Politics () is the set of activities that are associated with decision-making, making decisions in social group, groups, or other forms of power (social and political), power relations among individuals, such as the distribution of Social sta ...
power they wield, compared to other political players such as
judiciaries,
militaries, and
executives. In 2009, political scientists
M. Steven Fish and
Matthew Kroenig constructed a Parliamentary powers index in an attempt to quantify the different degrees of power among national legislatures. The German
Bundestag
The Bundestag (, "Federal Diet (assembly), Diet") is the lower house of the Germany, German Federalism in Germany, federal parliament. It is the only constitutional body of the federation directly elected by the German people. The Bundestag wa ...
, the
Italian Parliament
The Italian Parliament () is the national parliament of the Italy, Italian Republic. It is the representative body of Italian citizens and is the successor to the Parliament of the Kingdom of Sardinia (1848–1861), the Parliament of the Kingd ...
, and the Mongolian
State Great Khural tied for most powerful, while Myanmar's
House of Representatives
House of Representatives is the name of legislative bodies in many countries and sub-national entities. In many countries, the House of Representatives is the lower house of a bicameral legislature, with the corresponding upper house often ...
and Somalia's
Transitional Federal Assembly (since replaced by the
Federal Parliament of Somalia) tied for least powerful.
Some political systems follows the principle of
legislative supremacy, which holds that the legislature is the supreme branch of government and cannot be bound by other institutions, such as the judicial branch or a written
constitution
A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organization or other type of entity, and commonly determines how that entity is to be governed.
When these pri ...
. Such a system renders the legislature more powerful.
In
parliamentary
In modern politics and history, a parliament is a legislative body of government. Generally, a modern parliament has three functions: Representation (politics), representing the Election#Suffrage, electorate, making laws, and overseeing ...
and
semi-presidential
A semi-presidential republic, or dual executive republic, is a republic in which a president exists alongside a prime minister and a cabinet, with the latter two being responsible to the legislature of the state. It differs from a parliamen ...
systems of
government
A government is the system or group of people governing an organized community, generally a State (polity), state.
In the case of its broad associative definition, government normally consists of legislature, executive (government), execu ...
, the
executive is responsible to the legislature, which may remove it with a
vote of no confidence
A motion or vote of no confidence (or the inverse, a motion or vote of confidence) is a motion and corresponding vote thereon in a deliberative assembly (usually a legislative body) as to whether an officer (typically an executive) is deemed fi ...
. On the other hand, according to the
separation of powers
The separation of powers principle functionally differentiates several types of state (polity), state power (usually Legislature#Legislation, law-making, adjudication, and Executive (government)#Function, execution) and requires these operat ...
doctrine, the legislature in a
presidential system
A presidential, strong-president, or single-executive system (sometimes also congressional system) is a form of government in which a head of government (usually titled " president") heads an executive branch that derives its authority and l ...
is considered an independent and coequal branch of government along with both the
judiciary
The judiciary (also known as the judicial system, judicature, judicial branch, judiciative branch, and court or judiciary system) is the system of courts that adjudicates legal disputes/disagreements and interprets, defends, and applies the law ...
and the executive. Nevertheless, many presidential systems provide for the
impeachment of the executive for criminal or unconstitutional behaviour.
Legislatures will sometimes delegate their legislative power to
administrative or
executive agencies.
Members
Legislatures are made up of individual members, known as
legislator
A legislator, or lawmaker, is a person who writes and passes laws, especially someone who is a member of a legislature. Legislators are often elected by the people, but they can be appointed, or hereditary. Legislatures may be supra-nat ...
s, who
vote on proposed laws. A legislature usually contains a fixed number of legislators; because legislatures usually meet in a specific room filled with seats for the legislators, this is often described as the number of "seats" it contains. For example, a legislature that has 100 "seats" has 100 members. By extension, an
electoral district
An electoral (congressional, legislative, etc.) district, sometimes called a constituency, riding, or ward, is a geographical portion of a political unit, such as a country, state or province, city, or administrative region, created to provi ...
that elects a single legislator can also be described as a "seat", as, for example, in the phrases "
safe seat" and "
marginal seat
A marginal seat or swing seat is a constituency held with a small majority in a legislative election, generally one conducted under a single-winner voting system. In Canada, they may be known as target ridings. The opposite is a safe seat. T ...
".
After election, the members may be protected by
parliamentary immunity or
parliamentary privilege
Parliamentary privilege is a legal immunity enjoyed by members of certain legislatures, in which legislators are granted protection against civil or criminal liability for actions done or statements made in the course of their legislative duties ...
, either for all actions the duration of their entire term, or for just those related to their legislative duties.
Chambers
A legislature may
debate and
vote upon
bills as a single unit, or it may be composed of multiple separate
assemblies, called by various names including
''legislative chambers'',
''debate chambers'', and ''houses'', which debate and vote separately and have distinct powers. A legislature which operates as a single unit is
unicameral
Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly ...
, one divided into two chambers is
bicameral
Bicameralism is a type of legislature that is divided into two separate Deliberative assembly, assemblies, chambers, or houses, known as a bicameral legislature. Bicameralism is distinguished from unicameralism, in which all members deliberate ...
, and one divided into three chambers is
tricameral.

In bicameral legislatures, one chamber is usually considered the
upper house
An upper house is one of two Legislative chamber, chambers of a bicameralism, bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted p ...
, while the other is considered the
lower house
A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...
. The two types are not rigidly different, but members of upper houses tend to be indirectly elected or appointed rather than directly elected, tend to be allocated by
administrative division
Administrative divisions (also administrative units, administrative regions, subnational entities, or constituent states, as well as many similar generic terms) are geographical areas into which a particular independent sovereign state is divi ...
s rather than by population, and tend to have longer terms than members of the lower house. In some systems, particularly
parliamentary system
A parliamentary system, or parliamentary democracy, is a form of government where the head of government (chief executive) derives their Election, democratic legitimacy from their ability to command the support ("confidence") of a majority of t ...
s, the upper house has less power and tends to have a more advisory role, but in others, particularly
federal presidential system
A presidential, strong-president, or single-executive system (sometimes also congressional system) is a form of government in which a head of government (usually titled " president") heads an executive branch that derives its authority and l ...
s, the upper house has equal or even greater power.

In
federation
A federation (also called a federal state) is an entity characterized by a political union, union of partially federated state, self-governing provinces, states, or other regions under a #Federal governments, federal government (federalism) ...
s, the upper house typically represents the federation's component states. This is also the case with the supranational legislature of the
European Union
The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
. The upper house may either contain the delegates of state governmentsas in the European Union and in Germany and,
before 1913, in the United Statesor be elected according to a formula that grants equal representation to states with smaller populations, as is the case in Australia and the United States since 1913.
Tricameral legislatures are rare; the
Massachusetts Governor's Council still exists, but the most recent national example existed in the waning years of White-minority rule in
South Africa
South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
.
Tetracameral legislatures no longer exist, but they were previously used in Scandinavia. The only legislature with a number of chambers bigger than four was the
Federal Assembly of Yugoslavia; initially established as a Pentacameral body in 1963, it was turned into a hexacameral body in 1967.
Size
Legislatures vary widely in their size. Among
national legislatures, China's
National People's Congress
The National People's Congress (NPC) is the highest organ of state power of the People's Republic of China (PRC). The NPC is the only branch of government in China, and per the principle of unified power, all state organs from the Sta ...
is the largest with 2,980 members,
while
Vatican City
Vatican City, officially the Vatican City State (; ), is a Landlocked country, landlocked sovereign state and city-state; it is enclaved within Rome, the capital city of Italy and Bishop of Rome, seat of the Catholic Church. It became inde ...
's
Pontifical Commission is the smallest with 7.
Neither legislature is democratically elected: The Pontifical Commission members are appointed by the Pope and the
National People's Congress
The National People's Congress (NPC) is the highest organ of state power of the People's Republic of China (PRC). The NPC is the only branch of government in China, and per the principle of unified power, all state organs from the Sta ...
is
indirectly elected within the context of a
one-party state
A one-party state, single-party state, one-party system or single-party system is a governance structure in which only a single political party controls the ruling system. In a one-party state, all opposition parties are either outlawed or en ...
.
Legislature size is a trade off between efficiency and representation; the smaller the legislature, the more efficiently it can operate, but the larger the legislature, the better it can represent the political diversity of its constituents. Comparative analysis of national legislatures has found that size of a country's
lower house
A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...
tends to be proportional to the
cube root of its
population
Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...
; that is, the size of the lower house tends to increase along with population, but much more slowly.
See also
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List of legislatures by country
This is a list of legislatures by country. A "legislature" is the generic name for the national parliaments and congresses that act as a plenary general Deliberative assembly, assembly of Representative democracy, representatives and that have th ...
*
List of legislative buildings
*
Election apportionment diagram
*
Evidence-based legislation
*
Highest organ of state power
References
Further reading
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*
*
*
*
{{Authority control
Separation of powers