History of the board game Monopoly to Magie is the concept of "ownership" of a place on a game board, such that something would happen to the second (or later) player to land on the same space, without the first player's piece still being present. A copy of Magie's game that she had left at the Georgist community of Arden, Delaware and dating from 1903–1904, was presented for the PBS series "History Detectives". This copy featured property groups, organized by letters, later a major feature of "Monopoly" as published by Parker Brothers. Although "The Landlord's Game" was patented, and some hand-made boards were made, it was
History of the board game Monopoly sole inventor of the game, but sought out an affidavit by Darrow to repeat his statements to the contrary, and thus bolster their claim to the game. Parker Brothers subsequently decided to buy out Magie's 1924 patent and the copyrights of other commercial variants of the game to claim that it had legitimate undisputed rights to the game. Robert Barton, president of Parker Brothers, bought the rights to "Finance" from Knapp Electric later in 1935. "Finance" would be redeveloped, updated, and continued to be sold by Parker Brothers into the 1970s. Other board games based on a similar principle, such