One of the recurring clichés of the same-sex marriage debate is that the very notion of such a thing is a radical departure from anything entertained before in human history. Nothing, however, could be further from the truth. In many cultures and in many eras, the issue has emerged-and the themes of the arguments are quirkily similar. Same-sex love, as Plato's Symposium shows, is as ancient as human love, and the question of how it is recognized and understood has bedeviled every human civilization. In most, it has never taken the form of the modern institution of marriage, but in some, surprisingly, it has. In seventeenth-century China and nineteenth-century Africa, for example, the institution seems identical to opposite-sex marriage. In other cultures (see the debate between Brent Shaw and Ralph Hexter) the meaning of same-sex unions remains opaque and complex. In Native American society, marriage between two men was commonplace, but its similarity to contemporary lesbian and gay marriages is far from evident. And today in a number of foreign countries, laws extending civil marriage to gay and lesbian couples have been or will soon be enacted. Judge for yourself what this might mean for our current convulsion. One thing emerges clearly: this issue is not a modern invention. The need to balance human dignity and social norms is as old as civilization itself. Although much of the past history of this debate has been buried until recently, it has begun to emerge again with all the passion that now crackles through modern Western culture.