When was the game Monopoly first released?
History of the board game Monopoly
 – Patent for the first version of The Landlord's Game, Issued Jan 5, 1904
 – Patent for the second version of The Landlord's Game, Issued Sep 23, 1924
 – Patent awarded to C.B. Darrow for Monopoly on December 31, 1935
 and Monopoly.

 of many historical U.S. Monopoly sets, from Charles Darrow's sets through the 1950s from the Fernandez Collection Sundown Farm and Ranch
 of early Parker Brothers and Waddington sets, 1935–1954.
 – Film detailing the early history of the game with interviews including Phil Orbanes, Randolph Barton, Victor Watson, and Charles Darrow II.