Thank you for visiting the Official Plymouth 400 Website, the home of the US-based commemoration! In telling the historically accurate and culturally inclusive history, Plymouth 400 has initiated a partnership with Mayflower 400 in the UK, Leiden 2020 in the Netherlands, and Wampanoag Nation, encompassing the federally recognized tribes of Aquinnah and Mashpee, to enhance the understanding of people, places and motivations that culminated in America’s founding story.