When there was no GPS or world-wide radio navigation system travelers were dependent on landmarks, maps, and local knowledge to guide the way. When explorers and adventurers wandered the world, new methods were needed to find their way over featureless terrain such as ocean or desert. Eventually, a global grid system was developed, incorporating the lines of latitude and longitude. On Saturday, Oct. 14, from 11 to 12:30, the Wilton Historical Society at 224 Danbury Road will present a \u00a0workshop for children ages 6 to 12 about exploration and the evolution of wayfinding. Museum educator Lola Chen will talk about instruments such as the compass, the astrolabe, and the sextant and how navigation and exploration were affected. Making a simple hat rack displaying Wilton\u2019s longitude and latitude is the workshop project. The kids will help make their snack, spiced pumpkin muffins. \u00a0 The cost for members is $10 per child, maximum $25 per family; for non-members, $15 per child, maximum $35 per family. Register: firstname.lastname@example.org or 203-762-7257.