Since its founding in 1976, the African American Museum in Philadelphia has worked to preserve and honor African Americans' heritage through exhibitions, collections, and cultural programs. Four galleries contain exhibits delving into themes including the African diaspora, African American life in Philadelphia, and contemporary African American narratives. The core exhibition, Audacious Freedom: African Americans in Philadelphia 1776–1876, showcases a timeline detailing how African Americans lived in that era, and brings key historical figures to life through 10 life-size video projections. Visitors can interact with each of the projections, listening to their stories and requesting further topics of discussion, such as the Internet's role in their lives. Another gallery focuses on African American life post-emancipation leading up to the modern day. In addition to engaging exhibitions, the museum also boasts an extensive collection of historical artifacts, including Negro league baseball memorabilia, records, musical instruments, photographs, and the time machine that was used to retrieve each item.