A Los Angeles schoolteacher named Harriet Glickman wrote to Schulz on April 15, 1968 (eleven days after the Assassination of Martin Luther King Jr.), urging him to introduce a black character into "Peanuts". On April 26, Schulz wrote back, saying that he had thought about this, but was afraid of "patronizing our Negro friends." This began a correspondence between Schulz and Glickman that led to Schulz's creation of Franklin.