On Saturday, Oct. 20, 10 a.m. to 4 p.m., the National Museum of Natural History, the Society for American Archaeology, and Archaeology in the Community invite you to a family-friendly event celebrating International Archaeology Day. You can talk to archaeologists and learn about fascinating finds, career paths, challenges in the field, and the joy of discovery. You can do archaeology and practice the skills archaeologists use to piece together the past. Participate in mock excavations, illustration, decoding ancient writing systems, experimentation and artifact analysis. Archaeology Family Day is free and open to the public, but registration is requested at naturalhistory.si.edu. Registered guests will receive a special gift at the registration table. Check-in anytime during the program. Smithsonian Natural History Museum. naturalhistory.si.edu.