The indigenous Americas, from the Arctic to Tierra del Fuego, contained at contact some of the most varied marriage systems ever documented in human history. The Iroquois longhouse organized residence around matrilineally related women, with husbands moving in and clan mothers holding the power to depose chiefs. The Lakota and other Plains peoples practiced sororal polygyny, with sisters often married jointly to a successful hunter, and a thick network of fictive kin extending the obligations of marriage outward. The Pueblo peoples of the Southwest maintained matrilineal clans and ceremonial complementarity between women's and men's spheres that the Spanish friars spent four centuries failing to dissolve. The Inuit had spouse-exchange partnerships that secured travel and survival across vast distances. The Cherokee, the Hopi, the Navajo, the Crow, the Tlingit, the Haida, the Mapuche, the Aymara, the Guarani: each carried distinct architectures of pairing, residence, descent, and dissolution. To collapse this into "Native American marriage" is a category error of the same kind as collapsing "European marriage."

Two features recur across the diversity. The first is the centrality of clan and lineage over the conjugal pair. As Beatrice Medicine wrote of the Lakota, marriage was a "tiyospaye affair," meaning that the extended kin band, not the husband-wife dyad, was the basic unit. Children belonged to networks of mothers, aunts, grandmothers, uncles. Divorce, when it occurred, was unremarkable and did not destroy a child's social world. The second is the relative ease of separation in most pre-contact systems, especially compared to the Christian European norm that arrived with the conquest. Among the Iroquois, a woman could end a marriage by placing her husband's belongings outside the longhouse door. Among the Cherokee, women held title to fields and homes; a divorced man returned to his mother's house. The romantic ideology of indissoluble bonded coupledom was a colonial import, not an indigenous norm.

The colonial reshaping was violent and uneven. Spanish missions in California, New Mexico, and Paraguay enforced monogamy and church weddings, broke up polygynous unions, and reorganized labor around the Christian patriarchal household. French Jesuits in the Great Lakes worked through trade and intermarriage, producing the Metis and the long history of Indian-French unions that Sarah Carter has documented in the Canadian Northwest. English Puritans in New England treated indigenous marriage practices as evidence of savagery and used the legal categories of bastardy and adultery to dispossess. The Cherokee adopted patrilineal inheritance and a written constitution in the early nineteenth century partly to demonstrate "civilization" to a U.S. government that demanded conformity as the price of survival. Theresa Strouth Gaul's work on the marriage of Catharine Brown and the inter-cultural marriages of the Cherokee mission generation shows how individual couples navigated this pressure, sometimes embracing Christian companionate marriage, sometimes refusing it, often inhabiting both worlds at once.

The nineteenth and twentieth centuries brought a series of administrative assaults. The U.S. Indian Office and the Canadian Department of Indian Affairs prohibited polygyny on reservations, required civil marriage licenses, banned traditional ceremonies, and used boarding schools to break the intergenerational transmission of kinship knowledge. The Dawes Act of 1887 broke communal landholding and imposed the male-headed nuclear household as the unit of property. Canadian Indian Act provisions until 1985 stripped Indian status from women who married non-Indian men, a one-way patrilineal rule alien to most of the communities it was imposed on. These were not incidental policies; they were targeted attacks on indigenous marriage and kinship as the structural foundation of indigenous nationhood.

And yet revision continued. The Lakota tiyospaye reorganized around urban diaspora and powwow circuits. Two-spirit identities, suppressed for a century, have been openly reclaimed since the 1990s and are reshaping understandings of indigenous gender and partnership across many nations. The Navajo Nation legalized same-sex marriage debate runs alongside parallel discussions in the Cherokee Nation, the Coquille, and others. Land-back movements have brought attention back to clan-based, matrilineal forms of governance and inheritance. Indigenous family law in the U.S. and Canada now operates in a complicated three-way negotiation between tribal codes, settler state law, and the older oral traditions that never fully went silent.

Reading this history through Law 5 (Revise) at the collective scale, the lesson is that indigenous American marriage was never frozen. It was continually being reworked before contact (the spread of horse culture reshaped Plains marriage; the rise of the Iroquois Confederacy reshaped Haudenosaunee politics of kinship), brutally reworked during contact, and is being deliberately revised again now by indigenous people themselves rather than by external imposition. The story is not extinction and revival but a five-century argument that the original peoples of the Americas have never stopped having about what binds a household to a clan and a clan to a nation.