
The 21st Amendment to the US Constitution, also known as the Repeal of Prohibition, was ratified in 1933. It is unique in two ways: it is the only amendment to have repealed another amendment (the 18th) and it is the only amendment ratified by state conventions rather than state legislatures. The 21st Amendment brought an end to the prohibition of alcohol, which had been enacted in 1919 as a result of the temperance movement.
| Characteristics | Values |
|---|---|
| Amendment number | 21 |
| Date of proposal | February 20, 1933 |
| Date of adoption | December 5, 1933 |
| Date of addition to the U.S. Constitution | December 5, 1933 |
| Purpose | Repeal of the Eighteenth Amendment, ending national prohibition |
| Notable figures | Acting Secretary of State William Phillips, President Roosevelt |
| Legal implications | Prohibition of transportation or importation of intoxicating liquors in violation of state laws; upheld freedom of speech protections under the First Amendment; limited the effect of the Dormant Commerce Clause on state power over alcohol regulation |
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What You'll Learn

Repeal of the 18th Amendment
The 18th Amendment to the US Constitution, enacted in 1919, prohibited the manufacture, distribution, and sale of alcoholic beverages. This period, known as Prohibition, was the culmination of the temperance movement's efforts. However, it quickly became evident that Prohibition was highly unpopular among Americans, sparking a political movement advocating for its repeal.
The 21st Amendment, which repealed the 18th Amendment, was proposed by Congress in 1933 through the adoption of the Blaine Act. This amendment not only repealed the 18th Amendment but also ended national Prohibition, allowing states to regulate the transportation, importation, and use of intoxicating liquors within their borders. The 21st Amendment was unique in that it was ratified by state ratifying conventions specifically selected for this purpose, marking a departure from the previous method of ratification by state legislatures.
The process of repealing the 18th Amendment faced challenges due to grassroots politics and the influence of the temperance lobby on lawmakers. Despite these obstacles, the 21st Amendment was officially added to the US Constitution on December 5, 1933, when Utah's state convention unanimously ratified it. This amendment not only ended Prohibition but also contributed to the creation of approximately half a million jobs.
The 21st Amendment has had significant legal implications, with Supreme Court cases interpreting its scope and interaction with other constitutional provisions. For example, in 44 Liquormart, Inc. v. Rhode Island (1996), the Court held that states cannot use the 21st Amendment to infringe on freedom of speech protections guaranteed under the First Amendment. Additionally, in Granholm v. Heald (2005), the Court clarified that the 21st Amendment does not override the Dormant Commerce Clause regarding alcohol sales, requiring equal treatment for in-state and out-of-state wineries.
The repeal of the 18th Amendment and the subsequent enactment of the 21st Amendment reflect the shifting social and political attitudes towards alcohol regulation in the United States, marking a transition from the restrictive era of Prohibition to a more nuanced approach that respects states' rights and individual freedoms.
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Prohibition of alcohol
The 21st Amendment to the US Constitution, which ended national prohibition, was passed by Congress and ratified by state conventions on December 5, 1933. It repealed the 18th Amendment, which had made the manufacture, distribution, and sale of alcoholic beverages illegal.
The 18th Amendment and Prohibition
The 18th Amendment was the crowning achievement of the temperance movement and was enacted in 1919. However, it soon became highly unpopular, and a political movement for its repeal grew. The 18th Amendment prohibited the transportation or importation of intoxicating liquors into any state, territory, or possession of the United States for delivery or use, in violation of the laws thereof.
The 21st Amendment
As the movement to repeal the 18th Amendment gained momentum, the Congress adopted the Blaine Act, which proposed the 21st Amendment, on February 20, 1933. The 21st Amendment ended national prohibition and became effective on December 5, 1933, when Utah's state convention unanimously ratified it.
The 21st Amendment has been the subject of several court cases interpreting its scope and effect. For example, in 44 Liquormart, Inc. v. Rhode Island (1996), the Court held that states cannot use the amendment to abridge freedom of speech protections under the First Amendment. In Granholm v. Heald (2005), the Court held that the amendment does not overrule the Dormant Commerce Clause with respect to alcohol sales, requiring states to treat in-state and out-of-state wineries equally.
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State sovereignty
The Twenty-first Amendment to the United States Constitution repealed the Eighteenth Amendment, which had prohibited the manufacture, distribution, and sale of alcoholic beverages, also known as the Prohibition. The Twenty-first Amendment was passed by Congress and ratified by state conventions, ending national prohibition and restoring the ability of states to regulate the production, distribution, and sale of alcoholic beverages within their borders.
In the context of the Twenty-first Amendment, state sovereignty is evident in the way it restored the authority of individual states to regulate the alcoholic beverage industry within their borders. The amendment gave states the power to prohibit the transportation or importation of intoxicating liquors into their state, territory, or possession for delivery or use, as long as it did not conflict with other constitutional provisions.
The impact of the Twenty-first Amendment on state sovereignty has been further clarified through court cases. In 44 Liquormart, Inc. v. Rhode Island (1996), the Court held that states could not use the Twenty-first Amendment to abridge freedom of speech protections under the First Amendment. Additionally, in Granholm v. Heald (2005), the Court ruled that states must treat in-state and out-of-state wineries equally, upholding the Dormant Commerce Clause with respect to alcohol sales.
While the Twenty-first Amendment expanded state sovereignty in the realm of alcoholic beverage regulation, it did not override other constitutional provisions or grant states unlimited power in this area. The amendment's impact on state sovereignty has been balanced with federal powers and other constitutional protections, as interpreted by the courts.
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Freedom of speech
The First Amendment to the US Constitution, ratified on December 15, 1791, is commonly recognized for its protection of freedom of speech, religion, the press, and the right to assemble and petition the government. The text of the amendment states:
"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."
The freedom of speech clause of the First Amendment prohibits the US Congress from passing laws that restrict the freedom of speech of citizens. This amendment was influenced by the religious and political diversity of colonial America, where settlers from various religious groups, such as Puritans, Separatists, Anglicans, Quakers, and Lutherans, had fled religious persecution in Europe.
The interpretation of the First Amendment regarding freedom of speech has evolved over time. Initially, it restricted only the federal government, but by 1833, state governments also removed state-run religious institutions from their constitutions. The Supreme Court has interpreted the amendment to mean that no branch or section of the federal, state, or local governments can infringe upon American citizens' freedom of speech.
The First Amendment has been further expanded to protect modern forms of communication, including radio, film, television, video games, and the internet. However, private organizations, such as businesses, colleges, and religious groups, are not bound by the same constitutional obligation to uphold freedom of speech.
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Ratification by conventions
The Twenty-first Amendment to the United States Constitution, which repealed the Eighteenth Amendment, is the only amendment to have been ratified by state ratifying conventions. The Eighteenth Amendment had ushered in a period known as Prohibition, during which the manufacture, distribution, and sale of alcoholic beverages were illegal. However, as more and more Americans opposed the amendment, a political movement grew for its repeal.
The Twenty-first Amendment was proposed by the 72nd Congress on February 20, 1933, and was ratified by the requisite number of states on December 5, 1933. The amendment officially ended national prohibition and became effective on the same day. The Acting Secretary of State, William Phillips, certified that the amendment had been passed by the required three-fourths of the states.
State ratifying conventions are one of the two methods established by Article V of the United States Constitution for ratifying proposed constitutional amendments. The theory behind this method is that the delegates of the conventions, who are presumably average citizens, might be less likely to bow to political pressure to accept or reject a given amendment than state legislators. In the case of the Twenty-first Amendment, Congress specified that "conventions in three-fourths of the several States" must ratify the Amendment for it to become operative.
The convention method of ratification described in Article V is an alternate route to considering the pros and cons of a particular proposed amendment. It allows for the potential bypassing of state legislatures in the ratification process, as was desired in the case of the Twenty-first Amendment due to the powerful Temperance lobby in state legislatures. State lawmakers had enacted laws as early as the 1930s to prepare for the possibility of Congress specifying the convention method of ratification.
The amendment was officially added to the U.S. Constitution when Utah's state convention unanimously ratified it. It was subsequently ratified by conventions in several other states, with South Carolina's state convention unanimously rejecting it.
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Frequently asked questions
The 21st Amendment to the US Constitution, ratified in 1933, repealed the 18th Amendment and brought an end to the prohibition of alcohol.
The 18th Amendment to the US Constitution was enacted in 1919. It ushered in a period known as Prohibition, during which the manufacture, distribution, and sale of alcoholic beverages was illegal.
The 18th Amendment proved unpopular, and a political movement grew for its repeal. The 21st Amendment was passed to end Prohibition, and it is the only amendment to have been ratified by state ratifying conventions.
The end of Prohibition was thought to have created half a million jobs. It also led to a Supreme Court ruling that states cannot use the 21st Amendment to abridge freedom of speech protections under the First Amendment.




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