The name Wayback Machine was chosen as a droll reference to a plot device in an animated cartoon series, The Rocky and Bullwinkle Show. In one of the animated cartoon's component segments, Peabody's Improbable History, lead characters <answer>Mr. Peabody and Sherman</answer> routinely used a time machine called the "WABAC machine" (pronounced way-back) to witness, participate in, and, more often than not, alter famous events in history.
Which characters on The Rocky and Bullwinkle Show used a device that allowed them to travel through time?
Mr. Peabody and Sherman