Third-wave feminism is a feminist movement that began in the early 1990s; it was prominent in the decades prior to the fourth wave. Grounded in the civil-rights advances of the second wave, Gen X third-wave feminists born in the 1960s and 1970s embraced diversity and individualism in women, and sought to redefine what it meant to be a feminist. The third wave saw the emergence of new feminist currents and theories, such as intersectionality, sex positivity, vegetarian ecofeminism, transfeminism, and postmodern feminism. According to feminist scholar Elizabeth Evans, the "confusion surrounding what constitutes third-wave feminism is in some respects its defining feature."