Perhaps no advocacy group played a more pivotal role in the fight for same-sex marriage rights than Freedom to Marry. Now, with the Supreme Court's decision to bring marriage equality to the US, the group plans to shut down in the next few months.
But the group is going down with style, posting the video above that amounts to both a history lesson on marriage equality in the US and an incredibly moving celebration.
"Love won," the narrator concluded. "We all won."
Watch it. Be warned: It's hard not to cry.