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OSF was also the first major foundation to get behind same-sex marriage. From 2000 to 2005, a pivotal period in the marriage equality fight, OSF invested millions in LGBT rights organizations. This early money, some of which went to back state-level fights, like a 2005 legal challenge in Iowa, was arguably more important than the bigger money that came in from other funders later on. OSF grants also went to frontline activist groups fighting for immigrants and, later, to Black Lives Matter.
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