NEH invites applications for Challenge Grants in United States History and Culture. This grant opportunity is designed to help institutions and organizations strengthen their ability to explore significant themes and events in American history, so as to advance our understanding of how—since the nation’s founding—these events have shaped and been shaped by American identity and culture. NEH seeks to support a range of approaches to the American experience: for example, approaches might explore significant events in America’s history, its democratic institutions, the political principles on which the nation is founded, or the complicated mix of peoples and cultures that have formed America. Also welcome are proposals that seek support for the study of the history and culture of the United States in international contexts rather than in isolation—proposals that explore relationships with other nations and cultures that have profoundly affected the course of United States history. NEH also welcomes proposals for programming at America’s historic places (e.g., historic sites, neighborhoods, communities, or larger geographical regions).