Since the 1980s, lesbian, gay, bisexual, transgender, and queer (LGBTQ) social movements worldwide have put significant energy into securing relationship rights. In the 1970s, however, the general sentiment in such movements in the Occident had been anti-marriage and anti-nuclear family. This changed in the 1980s due to three factors: the impact of HIV/AIDS, which emphasized how vulnerable same-sex families are; the rise of families headed by same-sex parents who did not have the same protections as their different-sex counterparts; and globalization, which transferred the ideas about same-sex relationships among movements and created energy and useful policy connections. During the 1990s, a wave of marriage alternatives spread around the world, sometimes extended by legislatures and other times by courts. The rise of alternatives has raised these questions: are they a temporary compromise on the path to marriage equality; are they a replacement for marriage that is free of its historical discriminatory heritage; or are they proposing an additional legal institution alongside marriage? In the 2000s and since, marriage equality became realistic and more common as two dozen countries gradually extended marriage rights to same-sex couples, initially in Europe and North America, but later also in Australasia, in the entire Americas, and even—in fewer countries—in Asia and Africa. Incrementalism is the generally accepted theory for why progress occurs in some countries and delays in others. However, scholars have criticized the theory as descriptively inaccurate and, normatively, as portraying marriage as the final frontier for LGBTQ equality—thus contributing to that community’s emphasis on marriage equality to the neglect of other possible advocacy avenues. Further, the incrementalistic account should take into consideration that the path toward recognition is not linear and is international as well as national. Supranational courts have played an important role in the progress toward recognizing same-sex relationships; at the same time, the globalization of LGBTQ relationship rights has also resulted in a strong backlash and in regression in some countries.