This series of essays, written by leading scholars in the United States, Canada and Europe, explores the lives and ideas of some of the most influential women over the past few centuries whose work contributed enormously to the democratic, prosperous and free societies that many people enjoy today. They are a remarkably diverse group of women. Their lives span the eighteenth to twenty-first centuries and their contributions are significant despite the barriers each faced. Some were educated at prestigious universities while others only had informal schooling. Some were academics, others writers and journalists, and still others activists. What they had in common was an understanding of the power of freedom and liberty, and their influential advocacy of such during their lives. These essays are a celebration and recognition of their lives and contributions.