In 1713, a letter credited to Charles Waldegrave examined a game called "le Her". He was a functioning Jacobite and uncle to James Waldegrave, a British diplomat.[2][3] In this letter, Waldegrave gave a minimax blended methodology answer for a two-man form of the game and the issue is presently known as Waldegrave issue. In his 1838 Recherches sur les princi mathmatiques de la thorie des richesses (Researches into the Mathematical Principles of Theory of Wealth), Antoine Augustin Cournot considered a duopoly and introduced an ans the Nash balance of the game.