Analyzing the "racial masquerade" that was involved in creation of a white "melting pot" culture through the stereotyping and imitation of black and other non-white cultures in the early 20th century, historian Michael Rogin has commented: "Repudiating 1920s nativism, these films [Rogin discusses "The Jazz Singer", "Old San Francisco" (1927), "Whoopee!" (1930), "King of Jazz" (1930) celebrate the melting pot. Unlike other racially stigmatized groups, white immigrants can put on and take off their mask of difference. But the freedom promised immigrants to make themselves over points to the vacancy, the violence, the deception, and the melancholy at the core of American self-fashioning".