Teachers told boys to swim without a bathing suit at most high schools in the United States. It was normal for boys. Swimming nude at school was usually not allowed for girls. (A few schools had nude swimming for girls. At some schools, girls were not allowed to swim at all.) The boys had to swim nude in high schools in Houston, Texas from 1930 or earlier until the mid-1960s. In Chicago, Illinois schools, boys were required to swim nude until in the early 1970s.