The 111th Material Culture Forum's topic is "The Art and Science of Celestial Navigation Across the Smithsonian Universe." In this segment, William Fitzhugh, Senior Scientist, Curator of North American Archaeology and Director, Arctic Studies Center, National Museum of Natural History, speaks on "Navigating the Arctic: Vikings, Inuit, and Narwhals." In the Department of Anthropology, Bill specializes in archeology and ethnology, Arctic material culture, and ethnographic and prehistoric maritime adaptations. He first became interested in these area through canoeing in Ontario and studies at Dartmouth College. Following two years in the U.S. Navy he attended Harvard University where he received his PhD. Bill is curator of the exhibition and author of Narwhal: Revealing an Arctic Legend (2017). Since 1988, the Smithsonian Institution Material Culture Forum has been organizing quarterly meetings that offer staff with opportunities to interact with their colleagues in other disciplines, to share information about their fields, to think about different directions in their research, to develop new collaborative projects, or, to just learn. The Forum considers topics from the vast world of objects that the Smithsonian collects, preserves, studies, and presents. The Forum is welcome to all, including members of the outside academic community. This meeting was recorded in the Rasmuson Theater of the National Museum of the American Indian on February 27, 2019.