The basis from the PBS American Experience documentary Stonewall Uprising

In 1969, a series of riots over police action against The Stonewall Inn, a gay bar in NY City’s Greenwich Town, changed the longtime panorama of the homosexual in society literally overnight. Since then the event itself is among the most stuff of story, with relatively little hard information on the riots themselves. Right now, based on hundreds of interviews, an exhaustive search of public and previously sealed documents, and over ten years of intensive research into the background and this issue, Stonewall: The Riots That Sparked the Gay Revolution brings among history’s most singular events to vivid life.