A milestone also occurred this year in the nation's executive branch: President Barack Obama became the first president to openly support same-sex marriage.

These political trends emerged as a majority of Americans say they support legally recognizing same-sex marriage at a time when the public demonstrates increasing comfort with gays and lesbians, according to a CNN/ORC International survey in June.

Bacon said he and Hale have had to deal with acceptance among some family members. "We're in a great place, but it took awhile."

"I feel like we made history today, and I like the way history is going," said Bacon.