 Parker is, however, credited with urging Magie to take out her 1924 patent.After the Thuns learned the game, they began teaching its rules to their fraternity brothers at Williams College around 1926.Daniel W. Layman, in turn, learned the game from the Thun brothers (who later tried to sell copies of the game commercially, but were advised by an attorney that the game could not be patented, as they were not its inventors).