A strict dress code applied in the Main Quad and on much of campus for a great part of Stanford’s history. Until the late 1960s, women were required to wear skirts or dresses in the Quad, to class and in libraries. Some evaded this rule by rolling up pajama or pants legs and hiding them under coats. In 1903, men studied in the Quad in suits, women in long dresses, all wearing hats. Today, students wear casual dress on campus.