Feminist theory aims to define and advance political, economic, personal, and social rights for women. It seeks to establish equal opportunities for women in areas like education and employment. The history of modern western feminist movements is divided into three waves - the first wave focused on women's suffrage in the late 19th/early 20th century, the second wave promoted legal and social equality starting in the 1960s, and the third wave began in the 1990s as a reaction to perceived failures of the second wave. There are three basic forms of feminism - liberal feminism focuses on individual choice and action, socialist feminism addresses both public and private oppression, and radical feminism seeks to abolish patriarchy through challenging social norms