Jim Crow laws were state and local statutes enacted primarily in the southern United States between the end of Reconstruction (1877) and the mid-1960s that mandated racial segregation in public facilities, schools, transportation, and other areas of civic life, and that in practice restricted the political, economic, and social rights of black Americans. The term derives from a 19th-century minstrel character. The laws' scope, purpose, and the degree to which they were a continuation versus an intensification of antebellum racial caste systems are subjects of ongoing historical debate; see jim-crow-laws-origins-debate.

As a body of formal law, Jim Crow statutes no longer exist; they were dismantled through litigation, federal legislation, and constitutional amendment over the course of the 20th century, most notably by the Supreme Court's ruling in Brown v. Board of Education (1954), the Civil Rights Act of 1964, and the Voting Rights Act of 1965. Historical and legal scholarship on Jim Crow today centers on three areas: documenting its mechanisms and enforcement, assessing its long-term social and economic effects, and debating the extent to which informal or facially race-neutral practices constitute its functional continuation. This last question-sometimes framed as the existence of a “new Jim Crow” in areas such as criminal justice or voting administration-remains contested; see jim-crow-laws-legacy-debate.

For the period of legal codification and dismantlement, including the role of Plessy v. Ferguson (1896) in providing constitutional cover under the “separate but equal” doctrine and the subsequent civil rights litigation strategy that overturned it, see Jim Crow Laws - History.

• Continuity viewpoint: holds that Jim Crow was a direct, calculated successor to slavery, designed to preserve a racial hierarchy through legal and extralegal coercion once slavery was abolished. See jim-crow-laws-continuity-viewpoint.
• Liberal constitutional viewpoint: holds that Jim Crow represented a violation of constitutional guarantees of equal protection that was correctly remedied through judicial reinterpretation and federal civil rights legislation, exemplified by the reasoning underlying the Civil Rights Act of 1964; see Civil Rights Act of 1964 - Liberal Constitutional Viewpoint. See jim-crow-laws-liberal-constitutional-viewpoint.
• States' rights and federalism viewpoint: holds that, independent of the moral assessment of segregation itself, the federal government's intervention via the Civil Rights Act and related legislation raised legitimate and distinct questions about the constitutional balance between federal and state authority. See jim-crow-laws-federalism-viewpoint.
• Economic/structural viewpoint: emphasizes Jim Crow's function in maintaining a low-cost agricultural and industrial labor force and suppressing labor organizing across racial lines, treating legal segregation as inseparable from economic exploitation. See jim-crow-laws-economic-viewpoint.
• Gradualist/accommodationist historical viewpoint: a position held by some contemporaries (associated with figures such as Booker T. Washington) and later commentators, holding that incremental economic advancement, rather than immediate confrontation of segregation laws, was the more viable path for black Americans under Jim Crow. See jim-crow-laws-gradualist-viewpoint.
• “New Jim Crow” viewpoint: holds that mass incarceration and other ostensibly race-neutral policies in the late 20th and early 21st centuries have functioned to reproduce the social and political exclusion that Jim Crow laws formerly accomplished by statute. See jim-crow-laws-new-jim-crow-viewpoint.

• Dispute over the constitutionality and proper scope of federal anti-discrimination enforcement under the Civil Rights Act of 1964, including its application to private businesses under the Commerce Clause. See civil-rights-act-1964-commerce-clause-controversy.
• The legacy and legal reasoning of Plessy v. Ferguson and its formal overturning, including debate over how completely Brown v. Board of Education resolved the doctrine it replaced. See plessy-v-ferguson-overturning-controversy.

• History: Jim Crow Laws - History
• Debate: jim-crow-laws-origins-debate, jim-crow-laws-legacy-debate
• Viewpoint Debate: jim-crow-laws-continuity-vs-federalism-viewpoint-debate
• Controversy: civil-rights-act-1964-commerce-clause-controversy, plessy-v-ferguson-overturning-controversy
• Related Main Topics: Civil Rights Movement, Plessy v. Ferguson, Civil Rights Act of 1964, Reconstruction Era, Voting Rights Act of 1965

1. C. Vann Woodward, //The Strange Career of Jim Crow//, 3rd rev. ed. (New York: Oxford University Press, 1974).
2. //Plessy v. Ferguson//, 163 U.S. 537 (1896).
3. //Brown v. Board of Education of Topeka//, 347 U.S. 483 (1954).
4. Civil Rights Act of 1964, Pub. L. No. 88-352, 78 Stat. 241.
5. Voting Rights Act of 1965, Pub. L. No. 89-110, 79 Stat. 437.
6. Michael J. Klarman, //From Jim Crow to Civil Rights: The Supreme Court and the Struggle for Racial Equality// (New York: Oxford University Press, 2004).
7. Michelle Alexander, //The New Jim Crow: Mass Incarceration in the Age of Colorblindness// (New York: The New Press, 2010).