U.S. Patent Office
1933: The game Monopoly is created and trademarked by Charles Darrow in Atlantic City, New Jersey. Darrow was inspired by an earlier real estate game called The Landlord's Game that shared similarities with today's version of Monopoly, including renting properties, paying utilities and avoiding "jail," and created his own version, based on his favorite resort, Atlantic City. In 1935, Parker Brothers bought Darrow's game, helped him take out a patent on it and purchased his remaining inventory. The company then began mass marketing the game.