The series featured the Peanuts characters learning about events and people from American history. Due to the necessity of depicting important historical characters, This is America, Charlie Brown is one of the few Peanuts animated cartoons, along with the movie Bon Voyage, Charlie Brown (And Don't Come Back!!) and the TV specials What Have We Learned, Charlie Brown?, It's the Girl in the Red Truck, Charlie Brown, Snoopy's Reunion and It's the Pied Piper, Charlie Brown, to depict adults' faces; something that never happened in the Peanuts comic strip.