On Saturday, May 13, the Tenderloin Museum is inviting its friends and neighbors to celebrate the Tenderloin’s unique contributions to San Francisco history with daylong free museum admission and free public programs from 4 pm to 9 pm, featuring accounts of the “Invisible Circus” from the Diggers, San Francisco Chronicle Columnist David Talbot, the first-ever reading of the new play The Compton’s Cafeteria Riot, and a dynamic jazz night by SF Recovery Theater.