The Three Village Historic Society is a nonprofit organization dedicated to preserving and promoting the history of the Three Village area in New York. Founded in 1965, it focuses on educating the public about local heritage through various programs, events, and exhibits. The society manages several historic sites, including the Setauket Mill and the Emma S. Clark Memorial Library. The society also conducts research and offers resources for those interested in the area's past. It collaborates with local schools and community groups to foster an appreciation for history, ensuring that the stories of the Three Village community are shared and remembered.