Joan Rivers was more than a legendary comedian; she was an icon and a role model to millions, a fearless pioneer who left a legacy of expanded opportunity when she died in 2014. Her life was a dramatic roller-coaster of triumphant highs and devastating lows: the suicide of her husband, her feud with Johnny Carson, her estrangement from her daughter, her many plastic surgeries, her ferocious ambition and her massive insecurities. But Rivers' career was also hugely significant in American cultural history, breaking down barriers for her gender and pushing the boundaries of truth-telling for women in public life.