The , or the , are the
Thirteenth
In music or music theory, a thirteenth is the note thirteen scale degrees from the root of a chord and also the interval between the root and the thirteenth. The thirteenth is most commonly major or minor .
A thirteenth chord is th ...
,
Fourteenth, and
Fifteenth amendments to the
United States Constitution
The Constitution of the United States is the Supremacy Clause, supreme law of the United States, United States of America. It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally includi ...
, adopted between 1865 and 1870. The amendments were a part of the implementation of the
Reconstruction
Reconstruction may refer to:
Politics, history, and sociology
*Reconstruction (law), the transfer of a company's (or several companies') business to a new company
*''Perestroika'' (Russian for "reconstruction"), a late 20th century Soviet Union ...
of the
American South
The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, Dixieland, or simply the South) is census regions United States Census Bureau. It is between the Atlantic Ocean and the ...
which occurred after the
Civil War
A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
.
The Thirteenth Amendment (proposed in 1864 and ratified in 1865) abolished slavery and involuntary servitude, except for those duly convicted of a crime. The Fourteenth Amendment (proposed in 1866 and ratified in 1868) addresses citizenship rights and equal protection of the laws for all persons. The Fifteenth Amendment (proposed in 1869 and ratified in 1870) prohibits discrimination in voting rights of citizens on the basis of "race, color, or previous condition of servitude."
These amendments were intended to guarantee the freedom of the formerly enslaved and grant certain civil rights to them, and to protect the formerly enslaved and all citizens of the United States from discrimination. However, the promise of these amendments was eroded by state laws and federal court decisions throughout the late 19th century. It was not fully realized until the Supreme Court decision in ''
Brown v. Board of Education
''Brown v. Board of Education of Topeka'', 347 U.S. 483 (1954), was a landmark decision of the United States Supreme Court that ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the ...
'' in 1954 and laws such as the
Civil Rights Act of 1964
The Civil Rights Act of 1964 () is a landmark civil rights and United States labor law, labor law in the United States that outlaws discrimination based on Race (human categorization), race, Person of color, color, religion, sex, and nationa ...
and the
Voting Rights Act of 1965
The Voting Rights Act of 1965 is a landmark piece of federal legislation in the United States that prohibits racial discrimination in voting. It was signed into law by President Lyndon B. Johnson during the height of the civil rights move ...
.
Background
The Reconstruction Amendments were adopted between 1865 and 1870, the five years immediately following the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
.
The last time the Constitution had been amended was with the
Twelfth Amendment more than 60 years earlier in 1804.
These three amendments were part of a large movement to
reconstruct the United States that followed the Civil War. Their proponents believed that they would transform the United States from a country that President
Abraham Lincoln
Abraham Lincoln (February 12, 1809 – April 15, 1865) was the 16th president of the United States, serving from 1861 until Assassination of Abraham Lincoln, his assassination in 1865. He led the United States through the American Civil War ...
previously described as "half
slave
Slavery is the ownership of a person as property, especially in regards to their labour. Slavery typically involves compulsory work, with the slave's location of work and residence dictated by the party that holds them in bondage. Enslavemen ...
and half free." While Senator
Charles Sumner
Charles Sumner (January 6, 1811March 11, 1874) was an American lawyer and statesman who represented Massachusetts in the United States Senate from 1851 until his death in 1874. Before and during the American Civil War, he was a leading American ...
argued that
declarationism already justified citing the
United States Declaration of Independence
The Declaration of Independence, formally The unanimous Declaration of the thirteen States of America in the original printing, is the founding document of the United States. On July 4, 1776, it was adopted unanimously by the Second Continen ...
as authority for any
human rights
Human rights are universally recognized Morality, moral principles or Social norm, norms that establish standards of human behavior and are often protected by both Municipal law, national and international laws. These rights are considered ...
legislation, the
Radical Republicans supported passage of the Reconstruction Amendments to ensure that newly granted civil and political rights could not be easily repealed.
Thirteenth Amendment

The Thirteenth Amendment to the United States Constitution abolished
slavery
Slavery is the ownership of a person as property, especially in regards to their labour. Slavery typically involves compulsory work, with the slave's location of work and residence dictated by the party that holds them in bondage. Enslavemen ...
and
involuntary servitude
Involuntary servitude or involuntary slavery, more commonly known as just slavery, is a legal and constitutional term for a person laboring against that person's will to benefit another, under some form of coercion, to which it may constitute ...
, except as a punishment for a crime. It was passed by the
U.S. Senate on April 8, 1864, and, after one unsuccessful vote and extensive legislative maneuvering by the Lincoln administration, the House followed suit on January 31, 1865.
The measure was swiftly ratified by all but three
Union states (the exceptions were Delaware, New Jersey, and Kentucky), and by a sufficient number of border and "reconstructed" Southern states, to be ratified by December 6, 1865.
On December 18, 1865,
Secretary of State William H. Seward proclaimed it to have been incorporated into the federal Constitution. It became part of the Constitution 61 years after the
Twelfth Amendment, the longest interval between constitutional amendments to date.
Slavery had been tacitly enshrined in the original Constitution through provisions such as Article I, Section 2, Clause 3, commonly known as the
Three-Fifths Compromise
The Three-fifths Compromise, also known as the Constitutional Compromise of 1787, was an agreement reached during the 1787 United States Constitutional Convention over the inclusion of slaves in counting a state's total population. This count ...
, which detailed how each state's total enslaved population would be factored into its total population
count
Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...
for the purposes of
apportioning seats in the
United States House of Representatives
The United States House of Representatives is a chamber of the Bicameralism, bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Artic ...
and
direct taxes among the states. Although many enslaved people had been declared free by Lincoln's 1863
Emancipation Proclamation
The Emancipation Proclamation, officially Proclamation 95, was a presidential proclamation and executive order issued by United States President Abraham Lincoln on January 1, 1863, during the American Civil War. The Proclamation had the eff ...
, their legal status after the
Civil War
A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...
was uncertain.
Fourteenth Amendment
The Fourteenth Amendment to the United States Constitution was proposed by Congress on June 13, 1866.
By July 9, 1868, it had received ratification by the legislatures of the required number of states in order to officially become the Fourteenth Amendment.
On July 20, 1868, Secretary of State William Seward certified that it had been ratified and added to the federal Constitution. The amendment addresses citizenship rights and equal protection of the laws and was proposed in response to issues related to the treatment of
freedmen
A freedman or freedwoman is a person who has been released from slavery, usually by legal means. Historically, slaves were freed by manumission (granted freedom by their owners), emancipation (granted freedom as part of a larger group), or self- ...
following the war. The amendment was bitterly contested, particularly by Southern states, which were forced to ratify it in order to return their delegations to Congress. The Fourteenth Amendment is one of the most litigated parts of the Constitution, forming the basis for landmark decisions such as ''
Roe v. Wade
''Roe v. Wade'', 410 U.S. 113 (1973),. was a List of landmark court decisions in the United States, landmark decision of the U.S. Supreme Court in which the Court ruled that the Constitution of the United States protected the right to have an ...
'' (1973), regarding abortion, and ''
Bush v. Gore
''Bush v. Gore'', 531 U.S. 98 (2000), was a landmark decision of the Supreme Court of the United States, United States Supreme Court on December 12, 2000, that settled a recount dispute in Florida's 2000 presidential election between George W ...
'' (2000), regarding the
2000 presidential election.
The amendment's first section includes several clauses: the
Citizenship Clause, the
Privileges or Immunities Clause
The Privileges or Immunities Clause is Amendment XIV, Section 1, Clause 2 of the United States Constitution.
Along with the rest of the Fourteenth Amendment to the United States Constitution, Fourteenth Amendment, this clause became part of the C ...
, the
Due Process Clause
A Due Process Clause is found in both the Fifth and Fourteenth Amendments to the United States Constitution, which prohibit the deprivation of "life, liberty, or property" by the federal and state governments, respectively, without due proces ...
, and the
Equal Protection Clause
The Equal Protection Clause is part of the first section of the Fourteenth Amendment to the United States Constitution. The clause, which took effect in 1868, provides "nor shall any State... deny to any person within its jurisdiction the equal pr ...
. The Citizenship Clause provides a broad definition of citizenship, overruling the
Supreme Court's decision in ''
Dred Scott v. Sandford'' (1857), which had held that Americans descended from Africans could not be citizens of the United States. The Privileges or Immunities Clause has been interpreted in such a way that it does very little. While "Section 2 of the Fourteenth Amendment reduces congressional representation for states that deny suffrage on racial grounds," it was not enforced after southern states
disenfranchised blacks in the late 19th and early 20th centuries.
While Northern Congressmen in 1900 raised objections to the inequities of southern states being apportioned seats based on total populations when they excluded blacks, Southern
Democratic Party representatives formed such a powerful bloc that opponents could not gain approval for change of apportionment.
The Due Process Clause prohibits state and local government officials from depriving persons of life, liberty, or property without legislative authorization. This clause has also been used by the federal judiciary to make most of the
Bill of Rights
A bill of rights, sometimes called a declaration of rights or a charter of rights, is a list of the most important rights to the citizens of a country. The purpose is to protect those rights against infringement from public officials and pri ...
applicable to the states, as well as to recognize
substantive
In grammar, a noun is a word that represents a concrete or abstract thing, like living creatures, places, actions, qualities, states of existence, and ideas. A noun may serve as an object or subject within a phrase, clause, or sentence.Example ...
and
procedural requirements that state laws must satisfy.
The Equal Protection Clause requires each state to provide equal protection under the law to all people within its
jurisdiction
Jurisdiction (from Latin 'law' and 'speech' or 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, the concept of jurisdiction applies at multiple level ...
. This clause was the basis for the U.S. Supreme Court's ruling in ''
Brown v. Board of Education
''Brown v. Board of Education of Topeka'', 347 U.S. 483 (1954), was a landmark decision of the United States Supreme Court that ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the ...
'' (1954), that
racial segregation
Racial segregation is the separation of people into race (human classification), racial or other Ethnicity, ethnic groups in daily life. Segregation can involve the spatial separation of the races, and mandatory use of different institutions, ...
in public schools was unconstitutional, and its prohibition of laws against interracial marriage, in its ruling in ''
Loving v. Virginia'' (1967).
Fifteenth Amendment

The Fifteenth Amendment to the United States Constitution prohibits the federal and state governments from denying a citizen the
right to vote
Suffrage, political franchise, or simply franchise is the right to vote in representative democracy, public, political elections and referendums (although the term is sometimes used for any right to vote). In some languages, and occasionally in ...
based on that citizen's "
race,
color
Color (or colour in English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-our, -or, see spelling differences) is the visual perception based on the electromagnetic spectrum. Though co ...
, or previous condition of servitude." It was ratified on February 3, 1870, as the third and last of the Reconstruction Amendments.
In some of the early United States, such as New Jersey prior to 1807, citizens of all races, regardless of prior enslavement, could vote provided that they could meet other requirements like property ownership.
But by 1869, voting rights were restricted in all states to white men. The narrow election of
Ulysses S. Grant
Ulysses S. Grant (born Hiram Ulysses Grant; April 27, 1822July 23, 1885) was the 18th president of the United States, serving from 1869 to 1877. In 1865, as Commanding General of the United States Army, commanding general, Grant led the Uni ...
to the presidency in
1868 convinced a majority of
Republicans that protecting the franchise of black men was important for the party's future. After rejecting broader versions of a suffrage amendment, Congress proposed a compromise amendment banning franchise restrictions on the basis of race, color, or previous servitude on February 26, 1869. The amendment survived a difficult ratification fight and was adopted on March 30, 1870. After blacks gained the vote, the
Ku Klux Klan
The Ku Klux Klan (), commonly shortened to KKK or Klan, is an American Protestant-led Christian terrorism, Christian extremist, white supremacist, Right-wing terrorism, far-right hate group. It was founded in 1865 during Reconstruction era, ...
directed some of their attacks to disrupt their political meetings and intimidate them at the polls, to
suppress black participation. In the mid-1870s, there was a rise in new insurgent groups, such as the
Red Shirts and
White League, who acted on behalf of white supremicists calling themselves "
Redeemers
The Redeemers were a political coalition in the Southern United States during the Reconstruction era of the United States, Reconstruction Era that followed the American Civil War. Redeemers were the Southern wing of the Democratic Party (Unite ...
", to violently suppress black voting.
While Redeemers in the Democrats regained local power in southern state legislatures, through the 1880s and early 1890s, numerous blacks continued to be elected to local offices in many states, as well as to Congress as late as 1894.
Beginning around 1900, states in the former Confederacy passed new constitutions and other laws that incorporated methods to
disenfranchise blacks, such as
poll taxes
A poll tax, also known as head tax or capitation, is a tax levied as a fixed sum on every liable individual (typically every adult), without reference to income or resources. ''Poll'' is an archaic term for "head" or "top of the head". The sen ...
, residency rules, and
literacy tests
A literacy test assesses a person's literacy skills: their ability to read and write. Literacy tests have been administered by various governments, particularly to immigrants.
Between the 1850s and 1960s, literacy tests were used as an effecti ...
administered by white staff, sometimes with exemptions for whites via
grandfather clauses.
When challenges reached the
Supreme Court
In most legal jurisdictions, a supreme court, also known as a court of last resort, apex court, high (or final) court of appeal, and court of final appeal, is the highest court within the hierarchy of courts. Broadly speaking, the decisions of ...
, it interpreted the amendment narrowly, ruling based on the stated intent of the laws rather than their practical effect. The results in voter suppression were dramatic, as voter rolls fell: nearly all blacks, as well as tens of thousands of poor whites in Alabama and other states, were forced off the voter registration rolls and out of the political system, effectively excluding millions of people from representation.
In the twentieth century, the Court interpreted the amendment more broadly, striking down grandfather clauses in ''
Guinn v. United States'' (1915). It took a quarter-century to finally dismantle the white primary system in the "
Texas primary cases" (1927–1953). With the South having become a one-party region after the disenfranchisement of blacks,
Democratic Party primaries were the only competitive contests in those states. But Southern states reacted rapidly to Supreme Court decisions, often devising new ways to continue to exclude blacks from voter rolls and voting; most blacks in the South did not gain the ability to vote until after the passage of the mid-1960s federal civil rights legislation and the beginning of federal oversight of voter registration and district boundaries. The
Twenty-fourth Amendment (1964) forbade the requirement for poll taxes in federal elections; by this time five of the eleven southern states continued to require such taxes. Together with the U.S. Supreme Court ruling in ''
Harper v. Virginia State Board of Elections'' (1966), which forbade requiring poll taxes in state elections, blacks regained the opportunity to participate in the U.S. political system.
Erosion, litigation, and scope
The promise of these amendments was eroded by state laws and federal court decisions throughout the late 19th century before being restored in the second half of the twentieth century. In 1876 and beyond, some states passed
Jim Crow laws
The Jim Crow laws were U.S. state, state and local laws introduced in the Southern United States in the late 19th and early 20th centuries that enforced Racial segregation in the United States, racial segregation, "Jim Crow (character), Ji ...
that limited the rights of African-Americans. Important
Supreme Court
In most legal jurisdictions, a supreme court, also known as a court of last resort, apex court, high (or final) court of appeal, and court of final appeal, is the highest court within the hierarchy of courts. Broadly speaking, the decisions of ...
decisions that undermined these amendments were the ''
Slaughter-House Cases
The ''Slaughter-House Cases'', 83 U.S. (16 Wall.) 36 (1873), was a landmark U.S. Supreme Court decision which ruled that the Privileges or Immunities Clause of the Fourteenth Amendment to the U.S. Constitution only protects the legal rights t ...
'' in 1873, which prevented rights guaranteed under the Fourteenth Amendment's privileges or immunities clause from being extended to rights under state law; and ''
Plessy v. Ferguson'' in 1896 which originated the phrase "
separate but equal" and gave federal approval to Jim Crow laws. The full benefits of the Thirteenth, Fourteenth, and Fifteenth amendments were not realized until the Supreme Court decision in ''
Brown v. Board of Education
''Brown v. Board of Education of Topeka'', 347 U.S. 483 (1954), was a landmark decision of the United States Supreme Court that ruled that U.S. state laws establishing racial segregation in public schools are unconstitutional, even if the ...
'' in 1954 and laws such as the
Civil Rights Act of 1964
The Civil Rights Act of 1964 () is a landmark civil rights and United States labor law, labor law in the United States that outlaws discrimination based on Race (human categorization), race, Person of color, color, religion, sex, and nationa ...
and the
Voting Rights Act of 1965
The Voting Rights Act of 1965 is a landmark piece of federal legislation in the United States that prohibits racial discrimination in voting. It was signed into law by President Lyndon B. Johnson during the height of the civil rights move ...
. The Reconstruction Amendments affected
the constitutional division of power between U.S. state governments and the federal government of the United States, for the Reconstruction Amendments "were specifically designed as an expansion of federal power and an intrusion on state sovereignty." The United States Supreme Court observed in 2024 with a view to the Fourteenth Amendment and thus the Reconstruction Amendments in general: "The Fourteenth Amendment “expand
dfederal power at the expense of state autonomy” and thus “fundamentally altered the balance of state and federal power struck by the Constitution.” ''
Seminole Tribe of Fla. v. Florida'', 517 U. S. 44, 59 (1996); see also ''Ex parte Virginia'', 100 U. S. 339, 345 (1880)."
See also
*
Crittenden Compromise
*
Corwin Amendment
*
National Freedom Day
National Freedom Day is a United States observance on February 1 honoring the signing by President Abraham Lincoln of a joint House and Senate resolution that later was ratified as the 13th Amendment to the U.S. Constitution. President Lincoln si ...
*
Reconstruction Acts
*
Forty acres and a mule
Forty acres and a mule refers to a key part of Special Field Orders, No. 15 (series 1865), a wartime order proclaimed by Union general William Tecumseh Sherman on January 16, 1865, during the American Civil War, to allot land to some freed famil ...
*
Ballot access in the United States
*
Black suffrage in the United States
*
Voting rights in the United States
Voting rights, specifically Suffrage, enfranchisement and disenfranchisement of different groups, have been a moral and political issue throughout United States history.
Eligibility to vote in the United States is governed by the United Sta ...
*
List of amendments to the United States Constitution
Thirty-three amendments to the Constitution of the United States 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 those, ...
*
Slavery Abolition Act 1833
The Slavery Abolition Act 1833 ( 3 & 4 Will. 4. c. 73) was an act of the Parliament of the United Kingdom, which abolished slavery in the British Empire by way of compensated emancipation. The act was legislated by Whig Prime Minister Charl ...
(United Kingdom)
References
External links
The Reconstruction Amendments: Essential Documents(2 vols) (Kurt T. Lash, ed.) (University of Chicago Press, 2021)
{{Authority control
1860s in the United States
1865 in American law
1865 in American politics
1866 in American law
1866 in American politics
1867 in American law
1867 in American politics
1868 in American law
1868 in American politics
1869 in American law
1869 in American politics
1870 in American law
1870 in American politics
Amendments to the United States Constitution
Politics of the American Civil War
Reconstruction Era
United States slavery law