 In 1970 and 1971 the rights of pregnant schoolteachers were called into question.Many schoolteachers were forced to take unpaid maternity leaves around the fourth to sixth month of pregnancy for the reasons that it was potentially dangerous for the mother or child if the woman continued to work, she might not be able to focus on teaching, and students would be distracted by the visible signs of pregnancy.In 1974 in "Cleveland Board of Education v. LaFleur", the Supreme Court declared mandatory unpaid leave policies unconstitutional.