Roberts, C. J., dissenting
I
Petitioners and their amici base their arguments on the “right to marry” and the imperative of “marriage equality.” There is no serious dispute that, under our precedents, the Constitution protects a right to marry and requires States to apply their marriage laws equally. The real question in these cases is what constitutes “marriage,” or—more precisely—who decides what constitutes “marriage”?
The majority largely ignores these questions, relegating ages of human experience with marriage to a paragraph or two. Even if history and precedent are not “the end” of these cases, ante, at 4, I would not “sweep away what has so long been settled” without showing greater respect for all that preceded us. Town of Greece v. Galloway, 572 U. S. ___, ___ (2014) (slip op., at 8).
A
As the majority acknowledges, marriage “has existed for millennia and across civilizations.” Ante, at 3. For all those millennia, across all those civilizations, “marriage” referred to only one relationship: the union of a man and a woman. See ante, at 4; Tr. of Oral Arg. on Question 1, p. 12 (petitioners conceding that they are not aware of any society that permitted same-sex marriage before 2001). As the Court explained two Terms ago, “until recent years,… marriage between a man and a woman no doubt had been thought of by most people as essential to the very definition of that term and to its role and function throughout the history of civilization.” United States v. Windsor, 570 U. S. ___, ___ (2013) (slip op., at 13).
This universal definition of marriage as the union of a man and a woman is no historical coincidence. Marriage did not come about as a result of a political movement, discovery, disease, war, religious doctrine, or any other moving force of world history—and certainly not as a result of a prehistoric decision to exclude gays and lesbi-
