Same-sex marriage in Maine
Same-sex marriage has been legally recognized in Maine since December 29, 2012. A bill for the legalization of same-sex marriages was approved by voters, 53–47 percent, on November 6, 2012, as Maine, Maryland and Washington became the first U.S. states to legalize same-sex marriage by popular vote.
Source: Wikipedia — Same-sex marriage in Maine (CC BY-SA 4.0)