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Rh Rather, they worked deep transformations in its structure, affecting aspects of marriage long viewed by many as essential. See generally N. Cott, Public Vows; S. Coontz, Marriage; H. Hartog, Man & Wife in America: A History (2000).

These new insights have strengthened, not weakened, the institution of marriage. Indeed, changed understandings of marriage are characteristic of a Nation where new dimensions of freedom become apparent to new generations, often through perspectives that begin in pleas or protests and then are considered in the political sphere and the judicial process.

This dynamic can be seen in the Nation’s experiences with the rights of gays and lesbians. Until the mid-20th century, same-sex intimacy long had been condemned as immoral by the state itself in most Western nations, a belief often embodied in the criminal law. For this reason, among others, many persons did not deem homosexuals to have dignity in their own distinct identity. A truthful declaration by same-sex couples of what was in their hearts had to remain unspoken. Even when a greater awareness of the humanity and integrity of homosexual persons came in the period after World War II, the argument that gays and lesbians had a just claim to dignity was in conflict with both law and widespread social conventions. Same-sex intimacy remained a crime in many States. Gays and lesbians were prohibited from most government employment, barred from military service, excluded under immigration laws, targeted by police, and burdened in their rights to associate. See Brief for Organization of American Historians as Amicus Curiae 5–28.

For much of the 20th century, moreover, homosexuality was treated as an illness. When the American Psychiatric Association published the first Diagnostic and Statistical Manual of Mental Disorders in 1952, homosexuality was classified as a mental disorder, a position adhered to until 1973. See Position Statement on Homosexuality and Civil