Because a convention is not needed to make an amendment. That is the beauty of the constitution.
If you mean state conventions, then no, the 18th amendment was passed by these conventions, enacted Prohibition. However, a national convention has never been convened to approve an amendment.
This convention convened to write the Constitution of the USA.
There are two ways to propose an Amendment to the US Constitution: 1. An amendment may be introduced and pass both houses of Congress (House of Representatives and the Senate) by a majority of at least two-thirds (66.7%) of a quorum (not necessarily 2/3 of the full body). 2. Or, a Constitutional Convention may be convened if two-thirds of the states' legislatures call for a convention. Once the convention is convened, any amendment may be introduced, discussed and voted on. Once an Amendment is proposed by either process above, then it must be Ratified by three-quarters (75%) of the states (currently 38), either by a vote of the state legislature or state convention.
A constitutional convention is now a gathering for the purpose of writing a new constitution or revising an existing constitution. A general constitutional convention is called to create the first constitution of a political unit or to entirely replace an existing constitution. An unlimited constitutional convention is called to revise an existing constitution to the extent that it deems to be proper, whereas a limited constitutional convention is restricted to revising only the areas of the current constitution named in the convention's call, the legal mandate establishing the convention. Examples of constitutional conventions include:United States: Annapolis Convention (1786), which proposed what became the Philadelphia Convention (1787) -- Drafted the United States Constitution for ratification by the states. Article V of the constitution sets forth a mechanism whereby future constitutional conventions can be held. The constitution has been amended several times since the Philadelphia Convention, but never (as of 2011) by this method.France: The National Convention of 1792 (commonly referred to as The Convention) convened during The French Revolution on September 20 with the purpose of writing a Republican Constitution following the suspension of the French Monarchy. The monarchy was officially abolished on September 21 by The Convention.Missouri Constitutional Convention (1861-63), established Missouri's provisional government during the American Civil WarCanada: (1864), Quebec Conference, 1864, and London Conference of 1866.Australian constitutional conventions -- 1891, 1897, 1973 and 1998.Germany: ParlamentRat (Parliamentary Council) (1948) -- Drafted the Basic Law of the Federal Republic for ratification by the londonNorthern Ireland Constitutional Convention (1975--1976) -- a failed attempt to find a solution to the status of Northern Ireland.Scottish Constitutional Convention (1989) -- produced a plan for Scottish devolution.European Convention (2001) -- Drafted the Constitution for Europe for approval by the European Council and ratification by the member states.Philippine Constitutional Convention 1935 -- to draft a constitution to create the autonomous Commonwealth of the Philippines under the U.S. Act. The constitution was also used in the 3rd Republic (1946) until the passage of the 1973 constitution. Members were elected through the Philippine Constitutional Convention election, 19341971 -- to draft a revised constitution to replace the old U.S. customed 1935 Philippine constitution. Members were elected through the Philippine Constitutional Convention election, 1970. The system of government changed from Presidentitial to Parliamentary to Presidentital-Parliamentary (in 1984 amendment). The constitution lasted until the downfall of Ferdinand Marcos in 1986 and Corazon Aquino appointed members to draft the 1987 Constitution through a Constitutional Commission.
A constitutional convention is now a gathering for the purpose of writing a new constitution or revising an existing constitution. A general constitutional convention is called to create the first constitution of a political unit or to entirely replace an existing constitution. An unlimited constitutional convention is called to revise an existing constitution to the extent that it deems to be proper, whereas a limited constitutional convention is restricted to revising only the areas of the current constitution named in the convention's call, the legal mandate establishing the convention. Examples of constitutional conventions include:United States: Annapolis Convention (1786), which proposed what became the Philadelphia Convention (1787) -- Drafted the United States Constitution for ratification by the states. Article V of the constitution sets forth a mechanism whereby future constitutional conventions can be held. The constitution has been amended several times since the Philadelphia Convention, but never (as of 2011) by this method.France: The National Convention of 1792 (commonly referred to as The Convention) convened during The French Revolution on September 20 with the purpose of writing a Republican Constitution following the suspension of the French Monarchy. The monarchy was officially abolished on September 21 by The Convention.Missouri Constitutional Convention (1861-63), established Missouri's provisional government during the American Civil WarCanada: (1864), Quebec Conference, 1864, and London Conference of 1866.Australian constitutional conventions -- 1891, 1897, 1973 and 1998.Germany: ParlamentRat (Parliamentary Council) (1948) -- Drafted the Basic Law of the Federal Republic for ratification by the londonNorthern Ireland Constitutional Convention (1975--1976) -- a failed attempt to find a solution to the status of Northern Ireland.Scottish Constitutional Convention (1989) -- produced a plan for Scottish devolution.European Convention (2001) -- Drafted the Constitution for Europe for approval by the European Council and ratification by the member states.Philippine Constitutional Convention 1935 -- to draft a constitution to create the autonomous Commonwealth of the Philippines under the U.S. Act. The constitution was also used in the 3rd Republic (1946) until the passage of the 1973 constitution. Members were elected through the Philippine Constitutional Convention election, 19341971 -- to draft a revised constitution to replace the old U.S. customed 1935 Philippine constitution. Members were elected through the Philippine Constitutional Convention election, 1970. The system of government changed from Presidentitial to Parliamentary to Presidentital-Parliamentary (in 1984 amendment). The constitution lasted until the downfall of Ferdinand Marcos in 1986 and Corazon Aquino appointed members to draft the 1987 Constitution through a Constitutional Commission.
A constitutional convention is now a gathering for the purpose of writing a new constitution or revising an existing constitution. A general constitutional convention is called to create the first constitution of a political unit or to entirely replace an existing constitution. An unlimited constitutional convention is called to revise an existing constitution to the extent that it deems to be proper, whereas a limited constitutional convention is restricted to revising only the areas of the current constitution named in the convention's call, the legal mandate establishing the convention. Examples of constitutional conventions include:United States: Annapolis Convention (1786), which proposed what became the Philadelphia Convention (1787) -- Drafted the United States Constitution for ratification by the states. Article V of the constitution sets forth a mechanism whereby future constitutional conventions can be held. The constitution has been amended several times since the Philadelphia Convention, but never (as of 2011) by this method.France: The National Convention of 1792 (commonly referred to as The Convention) convened during The French Revolution on September 20 with the purpose of writing a Republican Constitution following the suspension of the French Monarchy. The monarchy was officially abolished on September 21 by The Convention.Missouri Constitutional Convention (1861-63), established Missouri's provisional government during the American Civil WarCanada: (1864), Quebec Conference, 1864, and London Conference of 1866.Australian constitutional conventions -- 1891, 1897, 1973 and 1998.Germany: ParlamentRat (Parliamentary Council) (1948) -- Drafted the Basic Law of the Federal Republic for ratification by the londonNorthern Ireland Constitutional Convention (1975--1976) -- a failed attempt to find a solution to the status of Northern Ireland.Scottish Constitutional Convention (1989) -- produced a plan for Scottish devolution.European Convention (2001) -- Drafted the Constitution for Europe for approval by the European Council and ratification by the member states.Philippine Constitutional Convention 1935 -- to draft a constitution to create the autonomous Commonwealth of the Philippines under the U.S. Act. The constitution was also used in the 3rd Republic (1946) until the passage of the 1973 constitution. Members were elected through the Philippine Constitutional Convention election, 19341971 -- to draft a revised constitution to replace the old U.S. customed 1935 Philippine constitution. Members were elected through the Philippine Constitutional Convention election, 1970. The system of government changed from Presidentitial to Parliamentary to Presidentital-Parliamentary (in 1984 amendment). The constitution lasted until the downfall of Ferdinand Marcos in 1986 and Corazon Aquino appointed members to draft the 1987 Constitution through a Constitutional Commission.
A constitutional convention is now a gathering for the purpose of writing a new constitution or revising an existing constitution. A general constitutional convention is called to create the first constitution of a political unit or to entirely replace an existing constitution. An unlimited constitutional convention is called to revise an existing constitution to the extent that it deems to be proper, whereas a limited constitutional convention is restricted to revising only the areas of the current constitution named in the convention's call, the legal mandate establishing the convention. Examples of constitutional conventions include:United States: Annapolis Convention (1786), which proposed what became the Philadelphia Convention (1787) -- Drafted the United States Constitution for ratification by the states. Article V of the constitution sets forth a mechanism whereby future constitutional conventions can be held. The constitution has been amended several times since the Philadelphia Convention, but never (as of 2011) by this method.France: The National Convention of 1792 (commonly referred to as The Convention) convened during The French Revolution on September 20 with the purpose of writing a Republican Constitution following the suspension of the French Monarchy. The monarchy was officially abolished on September 21 by The Convention.Missouri Constitutional Convention (1861-63), established Missouri's provisional government during the American Civil WarCanada: (1864), Quebec Conference, 1864, and London Conference of 1866.Australian constitutional conventions -- 1891, 1897, 1973 and 1998.Germany: ParlamentRat (Parliamentary Council) (1948) -- Drafted the Basic Law of the Federal Republic for ratification by the londonNorthern Ireland Constitutional Convention (1975--1976) -- a failed attempt to find a solution to the status of Northern Ireland.Scottish Constitutional Convention (1989) -- produced a plan for Scottish devolution.European Convention (2001) -- Drafted the Constitution for Europe for approval by the European Council and ratification by the member states.Philippine Constitutional Convention 1935 -- to draft a constitution to create the autonomous Commonwealth of the Philippines under the U.S. Act. The constitution was also used in the 3rd Republic (1946) until the passage of the 1973 constitution. Members were elected through the Philippine Constitutional Convention election, 19341971 -- to draft a revised constitution to replace the old U.S. customed 1935 Philippine constitution. Members were elected through the Philippine Constitutional Convention election, 1970. The system of government changed from Presidentitial to Parliamentary to Presidentital-Parliamentary (in 1984 amendment). The constitution lasted until the downfall of Ferdinand Marcos in 1986 and Corazon Aquino appointed members to draft the 1987 Constitution through a Constitutional Commission.
Actually it was more like 4 months. The Constitutional Convention convened on May 25, 1787 and adjourned on September 17, 1787 with the Constitution in final draft form.
The constitutional convention was convened and the following states voted for radification: Deleware, Pennsylvania, and New Jersey.
It took just under 4 months. The Constitutional Convention convened on May 25, 1787 and adopted the propopsed Constitution as the version to be sent to the states for ratification on September 17, 1787.
Delegates convened the Constitutional Convention to establish a better government and update ideas found in the Articles of Confederation. A growing population as well as lack of control over changing territories were major factors in choosing to meet in 1787.
because