How education is funded and how students pay for it has changed significantly since the inception of the first American colleges. Postsecondary education was once free or very inexpensive, a far cry from the exorbitant sums now expected of students even at state universities. The student loan system that now saddles most students with significant debt is only 60 years old. The evolution of student loans has been attributed to a series of social and economic developments, from changing enrollment demographics to the Industrial Revolution to the World Wars.