Defining Marriage traces the decades-long evolution of marriage through the personal stories of those who lived through it. Along the way, author Matt Baume explores the individual stories of the people who participated in this revolution, examines what marriage has become, and shows with vivid, compelling personal narratives how the act of defining marriage forever changed the lives and loves of the people who fought to define the institution. As the journey to equality unfolds over the years, Baume finds himself unexpectedly evaluating his own self-contradictory life as a marriage activist with no plans to marry his longtime partner. Defining Marriage is the story of how people from all walks of life fought to change marriage -- and how fighting for marriage, in turn, changed them.