The spinning of fibers to create thread and yarn has been going on for thousands of years, with spinning wheels introduced in Europe in the 13th century. The ancient tradition continues at Petaluma’s Windrush Farm Fiber Arts, which runs both a working farm and a fiber arts school. At its Farm Day on June 1, 10 a.m.–noon, the facility will offer spinning demos and a talk about wool, as well as opportunities to feed sheep, stroll through pastures, and visit with chickens, goats, and Bell the Jersey cow. Admission is $10–$25. Find out more at windrushfarm.wordpress.com/events or on Eventbrite (search on “Farm Day”).