R.I. Fairs and Festivals: Aug. 22 weekend

Westerly 350th Anniversary Celebration Olde Tyme Fair: Wilcox Park, 44 Broad St., Westerly. Westerly350.com. The festival will include live entertainment, swan boat rides, train rides, magic shows, jesters, storytelling, carnival games and cake. Musical headliners include Roomful of Blues and BritishMania, a Beatles tribute band. Free. Sat 11 a.m.-10 p.m.

NecronomiCon Providence 2019: The Graduate Providence hotel, 11 Dorrance St.; the Omni Hotel, 1 W. Exchange St.; and surrounding Providence venues. Necronomicon-providence.com. Four days of weird fiction, art, academia and festivities, movies screenings, vendor hall. $35-$90. Thu-Sun.

Native American Cultural Day: Martin House Farm, 22 Stoney Hill Road, North Swansea, Massachusetts. Learn about the daily life of the Wampanoag in the 17th century, their current lives and communities, and the connection they have to Earth. Artifacts will be passed around, including animal furs, tools and jewelry made from shells, stone and bone. Sun 1 p.m.

Sam’s Mill Fest: Old Slater Mill, 67 Roosevelt Ave., Pawtucket. bit.ly/2GQnvrC. The free event will include food trucks, artisans, vendors, gardening demonstrations, admission to the Slater Mill museum and live music. Sun noon-6 p.m.