They helped give rise to the University of Wisconsin System. They shaped an important social theory. They challenged conventional thinking about retirement.
They confirmed that men and women have different views on sex, even later in life.
For 50 years, a third of the graduates from Wisconsin high schools in 1957 have answered questions on topics ranging from money to menopause. In doing so, they have served as a sociological Petri dish in one of the country ‘s longest-running studies.