Poker is most well-known in the US as the most popular card game. The estimated annual revenues of $2.9 billion will be in 2021. Poker's origins can be traced to Europe. The origins of poker are typically tied to Spain and Ireland. Poque is the French variant of poker is the closest European cousin. It gained popularity in France during the latter half of 16th century. Poque as well as its German counterpart, pochen both were inspired by the Spanish game called primero.