The Harvard Historical Society will host a guided walking tour highlighting Shaker industries and products Sunday, May 20, starting at 1 p.m. Tour Harvard’s Shaker Village, including the herb drying house and the applesauce house, and learn about the Shakers’ ingenuity and inventions. The tour is part of the Freedom’s Way Hidden Treasures series. www.discoverhiddentreasures.org. Refreshments will follow the tour. There is no charge; donations are suggested. Park on one side of Shaker Road at the start of the village