The 1970s were more than big hair, mirror balls, and leisure suits. These were the years that bridged the chasm between the anti-establishment tumult of the 1960s and the morning-in-America conservatism of the 1980s. In Minnesota, this evolution unfolded in ways that defied expectations. No longer was Minnesota merely a vague, snow-covered outpost in the American consciousness. It was a place of note and consequence--a state of presidential candidates, grassroots activism, civic engagement, environmental awareness, and Mary Tyler Moore. Its governor appeared on the cover of Time magazine. Its...