Linda Brown, who as a schoolgirl was at the center of the landmark U.S. Supreme Court case that rejected racial segregation in American schools, died in Topeka, Kan., Sunday afternoon. She was 76.

Her sister, Cheryl Brown Henderson, confirmed the death to The Topeka Capital-Journal.

The 1954 U.S. Supreme Court case, Brown v. Board of Education, involved several families, all trying to dismantle decades of federal education laws that condoned segregated schools for black and white students. But it began with Brown’s father Oliver, who tried to enroll her at the Sumner School, an all-white elementary school in Topeka just a few blocks from the Browns’ home.

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