Title: List of amendments to the United States Constitution
Content:  United States Constitution have been proposed by the United States Congress and sent to the states for ratification since the Constitution was put into operation on March 4, 1789. Twenty-seven of these, having been ratified by the requisite number of states, are part of the Constitution. The first 10 amendments were adopted and ratified simultaneously and are known collectively as the Bill of Rights. Six amendments adopted by Congress and sent to the states have not been ratified by the required number of states. Four of these amendments are still pending, 1 is closed and has failed by its own terms, and 1 is closed and has failed by the terms of the resolution 
Title: List of proposed amendments to the United States Constitution
Content:  Hundreds of proposed amendments to the United States Constitution are introduced during each session of the United States Congress. From 1789 through January 3, 2019, approximately 11,770 measures have been proposed to amend the United States Constitution. Collectively, members of the House and Senate typically propose around 200 amendments during each two-year term of Congress. Most, however, never get out of the Congressional committees in which they were proposed. Only a fraction of those actually receive enough support to win Congressional approval to go through the constitutional ratification process. Some proposed amendments are introduced over and over again in different sessions of Congress. It is also common for 
Title: Article Five of the United States Constitution
Content:  Thirty-three amendments to the United States Constitution have been approved by the Congress and sent to the states for ratification. Twenty-seven of these amendments have been ratified and are now part of the Constitution. The first ten amendments were adopted and ratified simultaneously and are known collectively as the Bill of Rights. Six amendments adopted by Congress and sent to the states have not been ratified by the required number of states and are not part of the Constitution. Four of these amendments are still technically open and pending, one is closed and has failed by its own terms, and one is closed and has failed by the terms of the resolution proposing it. All totaled, approximately 11,539 measures to amend the Constitution have been proposed in Congress since 1789 (through December 16, 2014).
Title: History of the United States Constitution
Content:  Since the beginning of federal operations under the Constitution in 1789 through the beginning of 2013, approximately 11,539 proposals to amend the Constitution have been introduced in the United States Congress. Of these, thirty-three have been approved by Congress and sent to the states for ratification. Twenty-seven of these amendments have been ratified and are now part of the Constitution. The first ten amendments were adopted and ratified simultaneously and are known collectively as the Bill of Rights. Prior to the Twenty-seventh Amendment, which languished for 202 years, 7 months, 12 days before being ratified (submitted for ratification in 1789 as part of the Bill 
Title: List of amendments to the United States Constitution
Content:  it. All 33 amendments are listed and detailed in the tables below. Article Five of the United States Constitution details the two-step process for amending the nation's frame of government. Amendments must be properly proposed and ratified before becoming operative. This process was designed to strike a balance between the excesses of constant change and inflexibility. An amendment may be proposed and sent to the states for ratification by either: To become part of the Constitution, an amendment must be ratified by three-fourths of the states (38 since 1959) by either (as determined by Congress): When a constitutional amendment is sent to the states for ratification, the Archivist of the United States is 
Title: Constitution of the United States
Content:   The Constitution has twenty-seven amendments. Structurally, the Constitution's original text and all prior amendments remain untouched. The precedent for this practice was set in 1789, when Congress considered and proposed the first several Constitutional amendments. Among these, Amendments 1–10 are collectively known as the Bill of Rights, and Amendments 13–15 are known as the Reconstruction Amendments. Excluding the Twenty-seventh Amendment, which was pending before the states for 202 years, 273 days, the longest pending amendment that was successfully ratified was the Twenty-second Amendment, which took 3 years, 344 days. The Twenty-sixth Amendment was ratified in the shortest time, 100 days days. The average ratification time for the first twenty-six amendments was 1year, 252 days; for all twenty-seven, 9years, 48 days.
Title: List of proposed amendments to the United States Constitution
Content:  number of identical resolutions to be offered on issues that have widespread public and congressional support. Since 1789, Congress has sent 33 constitutional amendments to the states for ratification. Of these, 27 have been ratified. The framers of the Constitution, recognizing the difference between regular legislation and constitutional matters, intended that it be difficult to change the Constitution; but not so difficult as to render it an inflexible instrument of government, as the amendment mechanism in the Articles of Confederation, which required a unanimous vote of thirteen states for ratification, had proven to be. Therefore, a less stringent process for amending the Constitution was established in Article V.
Title: List of amendments to the United States Constitution
Content:  of January 3, 2019). Collectively, members of the House and Senate typically propose around 200 amendments during each two-year term of Congress. Proposals have covered numerous topics, but none made in recent decades have become part of the Constitution. Historically, most died in the congressional committees to which they were assigned. Since 1999, only about 20 proposed amendments have received a vote by either the full House or Senate. The last time a proposal gained the necessary two-thirds support in both the House and the Senate for submission to the states was the District of Columbia Voting Rights Amendment in 1978. Only 16 states had ratified it when the seven-year time limit expired.
Title: History of the United States Constitution
Content:  Amendments to the Constitution subsequent to the Bill of Rights cover a wide range of subjects. Several have added significant content to the original document. One of the most far-reaching is the Fourteenth, ratified in 1868, which establishes a clear and simple definition of citizenship and guarantees equal treatment under the law. Also significant are the Fifteenth, Nineteenth, Twenty-fourth, and Twenty-sixth, which were enacted to extend the right to vote to persons previously considered ineligible and also to protect their exercise of that right. One Amendment, the Eighteenth, which criminalized the production, transport and sale of alcohol nationwide, was later repealed by another, the Twenty-first. Nine ratified amendments (11, 12, 13, 14, 16, 17, 20, 22, and 25 ) have explicitly superseded or modified the text of the original Constitution.
Title: Constitutional amendment
Content:  A constitutional amendment is a modification of the constitution of a polity, organization or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text. Conversely, they can be appended to the constitution as supplemental additions (codicils), thus changing the frame of government without altering the existing text of the document. Most constitutions require that amendments cannot be enacted unless they have passed a special procedure that is more stringent than that required of ordinary legislation. Examples of such special procedures include supermajorities in the legislature, or direct approval by the electorate in a referendum, or even a combination of two or more different special procedures. A referendum to amend the constitution may also be triggered in some jurisdictions by popular initiative. Australia and Ireland 

Question: how many ammendments to the constitution have there been?
Answer: Twenty-seven.
Thirty-three.