Equal same-sex marriage in US

The movement to obtain marriage rights and benefits for same-sex couples in the United States began in the 1970s, but became more prominent in U.S. politics in 1993 when the Hawaii Supreme Court declared the state’s prohibition to be unconstitutional in Baehr v. Lewin. During the 21st century, public support for same-sex marriage has grown considerably, and national polls conducted since 2011 show that its legalization is supported by a majority of Americans. [source]