National Fossil Day is celebrated on October 15th and serves as an opportunity for people of all ages to learn about and appreciate the history of fossils and ancient organisms. Founded in the United States by Vincent L. Stannuci from the National Park Service, the day encourages educational activities and events across all 50 states. Participants can visit museums with fossil exhibits, such as the Field Museum in Chicago and the Smithsonian National Museum of Natural History in Washington, D.C. Additionally, the National Park Service hosts an art contest each year, inviting individuals to create artwork inspired by fossils. The day aims to promote awareness of geologic history and the importance of preserving fossil heritage.