Thailand became the first Southeast Asian country to legalize same-sex marriage.
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The Civil Marriage Act was introduced, making same-sex marriage legal in Canada.
Spain legalized same-sex marriage.
Same-sex marriage became legal in Austria.
Elton John and his partner David Furnish registered their civil partnership at Windsor Town Hall on the first day civil partnerships could legally be performed in England.
Same-sex marriage became legal in all 50 states.