The 250th anniversary of the United States marks a milestone, representing two and a half centuries of upholding democracy, building communities, and working to become a more perfect union. In celebration, the Smithsonian Institution created a new book, The Promise of a Nation: Commemorating 250 Years of Patriotism, Resilience, and Aspirations from the National Collection, in which curators reflect on how objects and people have shaped the national identity. During an evening presentation, Smithsonian experts share the story of how this publication came together, focusing on selected decades from the 1770s to the 2020s.