Conversations on the arithmetic of games started well before the ascent of current numeri hypothesis. Cardano's work on tosses of the dice in Liber de ludo aleae (Book on Games of which was composed around 1564 however distributed post mortem in 1663, formed a po the field's essential thoughts. During the 1650s, Pascal and Huygens fostered the idea of as on thinking about the construction of tosses of the dice, and Huygens distributed his bettin De ratiociniis in ludo aleae (On Reasoning in Games of Chance) in 1657