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Measures Proposed to Amend the Constitution
CongressDateNumber Proposed
1st–101st1789–199010,431
102nd1991–1992153
103rd1993–1994155
104th1995–1996152
105th1997–1998118
106th1999–200071
107th2001–200277
108th2003–200477
109th2005–200672
110th2007–200866
111th2009–201075
112th2011–201292
113th2013–201484
114th2015–201676
115th2017–201871
116th2019–202078

There are 27 amendments to the Constitution. Approximately 11, 848 measures have been proposed to amend the Constitution from 1789 through January 3, 2019.

The number of proposed amendments to the Constitution is an approximation for several reasons.  Inadequate indexing in the early years of the Congress, and separate counting of amendments in the nature of a substitute, may obscure the total. It is also common for a number of identical resolutions to be offered on issues that have widespread public and congressional support. Finally, congressional rules limiting the number of cosponsors permitted for each proposed amendment may be a factor in the number of resolutions introduced.