"Euchered"; lithograph (1884) from the Library of Congress
Euchre appears to have been introduced into the United States by the early German settlers of Pennsylvania, and from that region gradually to have been disseminated throughout the nation. It has been more recently theorized that the game and its name derives from an eighteenth-century Alsatian card game named Juckerspiel, a derivative of Triomphe. Also, it may have been introduced by immigrants from Cornwall, UK, where it remains a popular game. It is also played in the neighbouring county of Devon; one theory is that it was introduced by French or American prisoners of war imprisoned in Dartmoor prison during the early 19th century. Ombre is an ancestral form of Euchre.
In the United States the only teaching of the game, except a few paragraphs in the late American editions of Hoyle's Games, and of Bonn's New Hand-Book of Games, is contained in The Game of Euchre; with its Laws, 32mo., Philadelphia, 1850, pp. 32, attributed to a late learned jurist.
The game has declined in popularity since the 19th century, when it was widely regarded as the national card game, but it retains a strong following in some regions like the Midwest; especially the states of Indiana, Iowa, Illinois, Ohio, Michigan, Missouri, and Wisconsin. It is played differently from region to region and even within regions. In Canada, the game is still very popular in Ontario and is commonly seen as a drinking game with tournaments often held by bars and community centres. The United Kingdom, the Channel Islands, Australia and New Zealand all have large followings of the game.