WASHINGTON, DC.- The Smithsonian received a momentous $40 million grant from Lilly Endowment Inc. that will support the Institution’s celebration of the United States’ 250th anniversary—or semiquincentennial. The Smithsonian’s vision is to bring together people from all backgrounds and communities to reflect on what it means to be an American. The celebration will include special exhibitions and programming at the Smithsonian’s museums, an extension and expansion of the Smithsonian’s annual Folklife Festival, the temporary reopening of the Arts and Industries Building and Smithsonian Castle, along with special events and digital activities that make the Smithsonian accessible across the nation.

“I am so pleased to build on the 15 years of support we have had from Lilly Endowment,” said Smithsonian Secretary Lonnie G. Bunch III. “Their generous grant activates our celebration of the nation’s 250th anniversary, enabling exciting programs that will explore our American heritage. We will explore our past to better understand who we are today. By taking this time to reflect on what it means to be an American, we can work together to create a more dynamic and better future for everyone.”

Throughout 2026, the Smithsonian museums will create unique and memorable opportunities and experiences for the anticipated 50 million visitors expected in Washington, D.C., that year. Several museums will host major events, including the 50th anniversary celebration of the National Air and Space Museum’s Mall location, the reopening of the Hirshhorn Museum’s transformed Sculpture Garden and the National Museum of African American History and Culture’s 10th anniversary celebration. The centerpiece of the Smithsonian’s celebration, an expanded Folklife Festival, hosted by the Smithsonian’s Center for Folklife and Cultural Heritage, will transform the National Mall into a living testament to the country’s remarkable cultural heritage for the millions of visitors anticipated in summer 2026. In addition, the Smithsonian’s two oldest buildings, the Smithsonian Castle and the Arts and Industries Building, while both under renovation, will temporarily reopen in 2026 so they can serve as a visitor center and convening space.

The Smithsonian will leverage the excitement surrounding the semiquincentennial to engage Americans around the country through Regional Collaboratives, which will launch in fall 2024 and continue through 2026 and beyond. At their core, Regional Collaboratives are community-based collaborations where the Smithsonian and national partners will co-create programming and content with local organizations based upon community feedback, interests and identified needs. By collaborating with trusted local sources, the Institution advances its efforts to become a valued source of information at the regional level with new groups and communities that are less familiar with or have limited access to Smithsonian resources and expertise.

“The Smithsonian is among the most trusted sources of knowledge about our nation’s history and the diverse faiths, cultures and experiences that have shaped and continue to shape American life,” said N. Clay Robbins, Lilly Endowment’s chairman and CEO. “The 250th anniversary presents a historic opportunity for the Smithsonian to lead an expansive celebration that recognizes the aspirations, values, challenges and resiliency reflected in our shared history. It is a privilege for Lilly Endowment to support the Smithsonian’s compelling vision for marking this important milestone in the life of our country.”

Since 2010, Lilly Endowment has awarded grants to the Smithsonian totaling more than $105 million, including this $40 million grant, among others for construction, curators and a center on African American religious life at the National Museum of African American History and Culture; for curators, programs and construction of a gallery on religion in the U.S. at the National Museum of American History; and for the design and construction of the National Museum of the American Latino.