The legal architecture of racial segregation through the ban on interracial marriage

Cultures · Published 3 October 2026 Swipe more like this →

In short: From the 17th-century American colonies to Nazi Germany and apartheid South Africa, governments have used marriage laws as a tool for racial engineering. These statutes did more than prohibit unions; they criminalized intimacy, enforced social hierarchies, and dictated the very definition of personhood.

Anti-miscegenation laws—terms used to describe the criminalization of interracial marriage and sex—have been a recurring mechanism of state-sponsored segregation. In North America, these practices began in the late 17th century, with Maryland passing the first such law in 1691. By the late 1800s, 38 U.S. states had enacted statutes, and even as late as 1924, 29 states maintained bans. While the 1967 Supreme Court ruling in Loving v. Virginia declared these laws unconstitutional under the 14th Amendment, the legal residue persisted; Alabama did not remove anti-miscegenation language from its constitution until 2000.

The scope of these laws often extended beyond marriage to regulate all sexual relations. In South Africa, the 1950 Immorality Act criminalized sexual relations between whites and non-whites, while the Population Registration Act of 1950 provided the framework for racial classification. Similarly, the Nazi regime utilized the 1935 Nuremberg Laws to forbid sexual relations and marriages between 'Aryans' and Jews, later extending these prohibitions to include Roma, Sinti, and Black people. In the Nazi context, such acts were labeled 'Rassenschande' (race defilement) and could lead to imprisonment or deportation to concentration camps.

These laws were rarely just about marriage; they were about controlling identity and lineage. In German colonies like German South West Africa (1905), German East Africa (1906), and German Samoa (1912), colonial governors issued decrees to prevent 'racial mixed marriage.' In Australia, 'Half-Caste Acts' in the Northern Territory and Queensland regulated marriages between indigenous and non-indigenous adults to promote assimilation. Even in ancient history, an 836 CE Chinese decree forbade relationships between Chinese people and various foreign groups, including Iranians and Africans, demonstrating a long-standing historical pattern of using matrimonial law to enforce ethnic boundaries.

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