She published the results in a series of articles, and later expanded that work into a book, The Feminine Mystique. The book was published in 1963 and was an immediate sensation. Many historians credit Friedan's work as launching second-wave feminism.
In 1966, Friedan and other feminists founded the National Organization for Women (NOW). The organization was primarily focused on securing women's rights, particularly equal employment opportunities and pay, and equal access to education. NOW also supported passage of the Equal Rights Amendment, reproductive rights, and LGBT rights.
In 2011, the Historical Society of Rockland County placed a marker in honor of Friedan in Grand-View-on-Hudson. The marker identifies the town as the birthplace of the modern women's movement and features an image of Friedan in profile. The marker was placed in front of the Village Hall, which has since been demolished because of damage sustained during Hurricane Sandy.