In Cleveland Board of Education v. LaFleur, the U.S. Supreme Court determines that it is illegal to force pregnant women to take maternity leave on the assumption they are incapable of working. At issue in the case was a Cleveland school board requirement that pregnant schoolteachers take five months of unpaid maternity leave before their due date, based on an assumption that they would be physically unable to work during pregnancy. After the decision, more women worked until delivery and society began to view pregnancy as a normal and healthy condition rather than an incapacitating one.