The history of women in the United States encompasses the lived experiences and contributions of women throughout American history. The earliest women living in what is now the United States were Native Americans. During the 19th century, women were primarily restricted to domestic roles in keeping with Protestant values. The campaign for women's suffrage in the United States culminated with the adoption of the Nineteenth Amendment to the U.S. Constitution in 1920. During World War II, many women filled roles vacated by men fighting overseas. Beginning in the 1960s, the second-wave feminist movement changed cultural perceptions of women, although it was unsuccessful in passing the Equal Rights Amendment. In the 21st century, women have achieved greater representation in prominent roles in