Same-sex marriage in Canada

Same-sex marriage was progressively introduced in several provinces and territories of Canada by court decisions beginning in 2003 before being legally recognized nationwide with the enactment of the Civil Marriage Act on July 20, 2005. On June 10, 2003, the Court of Appeal for Ontario issued a decision immediately legalizing same-sex marriage in Ontario, thereby becoming the first province where it was legal.

Source: Wikipedia — Same-sex marriage in Canada (CC BY-SA 4.0)