B.C., created by American cartoonist Johnny Hart in 1958, is set in prehistoric times with a group of cavemen as its main characters. The title character is a "patsy" — per Hart's description — who hangs out with friends like Thor (the inventor of the wheel and the comb), doing things like making calendars out of stone and trying to harness fire. When Hart died at his drawing board in April 2007, his grandson Mason Mastroianni took over as artist and writer.