This Map Shows How Gay Marriage Spread Across the United States

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People celebrate in front of the U.S. Supreme Court after the ruling in favor of same-sex marriage June 26, 2015 in Washington, DC.
People celebrate in front of the U.S. Supreme Court after the ruling in favor of same-sex marriage June 26, 2015 in Washington, DC.Mark Wilson—Getty Images
By David Johnson

In a historic ruling Friday, the Supreme Court legalized gay marriage nationwide by declaring unconstitutional all state bans on same-sex marriage.

Click the map button below to watch how same-sex legislation has changed in the United States since Vermont legalized civil unions in 2000, followed closely by Massachusetts first legalizing same-sex marriage eleven years ago in 2004.

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