The 1960s is generally considered to be the "golden age" for "Peanuts". During this period, some of the strip's best-known themes and characters appeared, including Peppermint Patty, Snoopy as the "World War One Flying Ace", Frieda and her "naturally curly hair", and Franklin. "Peanuts" is remarkable for its deft social commentary, especially compared with other strips appearing in the 1950s and early 1960s. Schulz did not explicitly address racial and gender equality issues so much as assume them to be self-evident. Peppermint Patty's athletic skill and self-confidence are simply taken for granted, for example, as is Franklin's presence in a racially integrated school and neighborhood. (Franklin's creation occurred at least in part as a result of Schulz's 1968 correspondence with a socially progressive fan.) The fact that Charlie Brown's baseball team had three girls on it was also at least ten years ahead of its time. The 1966 prime time television special "Charlie Brown's All Stars!" dealt with Charlie Brown refusing sponsorship of his team on the condition he fire the girls and Snoopy, because the league does not allow girls or dogs to play.