The Hopkinton Historical Society, 168 Hayden Rowe Street, will hold its annual Holiday Open House on Saturday, Dec. 16, from 11 a.m. to 3 p.m. This year’s event will feature an exhibit of paintings by local artists Nancy Bailey, Robert McGraw, Frank Toner, Davison Welch et al. Refreshments will be served, and admission is free to all. For more information, visit hopkhistsoc.org.