What year was same-sex marriage legalized?

Denmark was the first state to recognize a legal relationship for same-sex couples, establishing "registered partnerships" very much like marriage in 1989.

In 2001, the Netherlands became the first nation in the world to grant same-sex marriages.

Same-sex marriages are also granted and mutually recognized by:

Belgium (2003)

Spain (2005)

Canada (2005)

South Africa (2006)

Norway (2009)

Sweden (2009)

Portugal (2010)

Iceland (2010)

Argentina (2010)

Denmark (2012)

Brazil (2013)

France (2013)

Uruguay (2013)

New Zealand (2013)

In Mexico (2013), same-sex marriage is recognized in all 31 states but only performed in Mexico City and in Quintana Roo State.

In the United States (2013), thirteen states and the District of Columbia permit same sex marriage, beginning with Massachusetts in 2004 and Connecticut in 2008.