Calvin and Hobbes by Bill Watterson for January 29, 1986. Calvin's mother is using something called a "typewriter" which people used in the Dark Ages to type stuff. Wikipedia: "A typewriter is a mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of keys, and each one causes a different single character to be produced on paper by striking an inked ribbon selectively against the paper with a type element."