An influx of young people to Vermont in the 1970s brought experimental communes to the hillsides, political and social activism, food cooperatives, drug use and it also sparked fears of a hippie invasion.

Vermont's population, which had been relatively stagnant, jumped 15 percent in the 1970s, with more than half of the increase coming from people moving in from out of state.

Now the Vermont Historical Society is collecting stories and artifacts in a two-year study to document lasting influence the 1970s had on the state. It's holding forums around the state for people to tell their stories, good and bad about that era in Vermont.