Over 11,000 amendments to the United States Constitution have been introduced. Only 33 have been approved by Congress and only 27 were ratified by the states.
Amendments approved by Congress but not ratified by the states
- Article I of the twelve initial proposed amendments, ten of which became the Bill of Rights, and one of which became Amendment XXVII. The unratified amendment would have set the size of Congress.
- Titles of Nobility amendment proposed in 1811 (the second session of the 11th Congress)
- an amendment proposed in 1861 to forbid Constitutional Amendments that would permit Congressional interference with State domestic institutions. It read: "No amendment shall be made to the Constitution which will authorize or give to Congress the power to abolish or interfere, within any State, with the domestic institutions thereof, including that of persons held to labor or service by the laws of said State."
- an anti-child-labor amendment proposed in 1924. It read: "Section. 1. The Congress shall have power to limit, regulate, and prohibit the labor of persons under eighteen years of age. Section. 2. The power of the several States is unimpaired by this article except that the operation of State laws shall be suspended to the extent necessary to give effect to legislation enacted by the Congress."
- Equal Rights Amendment proposed in 1972. It expired unratified in 1982.
- The District of Columbia Voting Rights Amendment proposed in 1978, which would have granted the District the full voting rights of a U.S. state. It expired unratified in 1985.