Prussia from Court Game of Geography

In 1225, the Teutonic Knights, a military order of crusading knights, headquartered in the Kingdom of Jerusalem at Acre transferred their operations to the Baltic Sea where Order engaged in numerous armed conflicts until Order's lands came into the hands of a branch of the Hohenzollern family, who already ruled the Brandenburg. The resulting state, known as Brandenburg-Prussia, commonly known as "Prussia", consisted of geographically disconnected territories in Prussia, Brandenburg, and the Rhineland. During the Thirty Years' War (1618–1648), armies repeatedly marched across the territories so Hohenzollerns had to build a powerful military to protect disconnected lands. "Prussia" developed one of the most powerful armies in Europe. Mirabeau said: "Prussia, is not a state with an army, but an army with a state." More than 20,000 Protestant refugees from Salzburg settled in thinly populated eastern Prussia. Prussia engaged in wars with Poland, Lithuania, numerous German States, Habsburg Austria, France, and Russia proving Prussia's status as one of the great powers of Europe. By 1813, Prussia could mobilize almost 300,000 soldiers. Prussian troops contributed crucially in the Battle of Waterloo - the final victory over Napoleon. Prussia invited the immigration of Protestant refugees (especially Huguenots). For protestants, Prussia was a safe haven in much the same way that the United States welcomed immigrants seeking freedom in the 19th century. Frederick the Great, the first "King of Prussia" introduced a general civil code, abolished torture and established the principle that the Crown would not interfere in matters of justice. He promoted an advanced secondary education which prepares the brightest pupils for university studies. The Prussian education system was emulated in various countries, including the United States. The first half of the 19th century saw a prolonged struggle between those who wanted a united Germany and others who wanted to maintain Germany as a patchwork of independent, monarchical states with Prussia and Austria competing for influence. In 1862 Prussian King Wilhelm I appointed Otto von Bismarck as Prime Minister. Bismarck guided Prussia through a series of wars resulting in a formation of the North German Confederation that united all German-speaking peoples, excluding Austria, which remained connected to non-German territories. On 18 January 1871, William was proclaimed "German Emperor". World War I ended Prussia’s supremacy. The abolition of the political power of the aristocracy transformed Prussia into a region strongly dominated by the left-wing of the political spectrum. Prussia lost territories and became a Land under the Weimar Republic. After the rise to power of Adolf Hitler in 1933, the Prussian constitution was set aside and the legislature abolished. World War II led to the abolition of Prussia with most the land ceded over to Poland. The German population was expelled and fled to the Western occupation zones. The number of casualties is estimated at 2 to 4 million, including those who fled during the last months of the war. 25 February 1947, Prussia was officially proclaimed to be dissolved.

Playing cards may have been invented in China around the 9th century AD as a result of the usage of woodblock printing technology. The first cards may have been actual paper currency which doubled as both the tools of gaming and the stakes being played for. When using paper money was inconvenient and risky, they were substituted by play money known as "money cards". The earliest record of playing cards in Europe is believed by some researchers to be a ban on card games in the city of Bern in 1367. Among the early patterns of playing cards were those probably derived from the Mamluk suits of cups, coins, swords, and polo sticks, which are still used in traditional Latin decks. The Flemish Hunting Deck, held by the Metropolitan Museum of Art, is the oldest complete set of ordinary playing cards made in Europe from the 15th century. As cards spread from Italy to Germanic countries, the Latin suits were replaced with the suits of leaves (or shields), hearts (or roses), bells, and acorns, and a combination of Latin and Germanic suit pictures and names resulted in the French suits of trèfles (clovers), carreaux (tiles), cœurs (hearts), and piques (pikes) around 1480. Queens appeared sporadically in packs as early as 1377, especially in Germany. Although the Germans abandoned the queen before the 1500s, the French permanently picked it up and placed it under the king. Packs of 56 cards containing in each suit a king, queen, knight, and knave (as in tarot) were once common in the 15th century. The United States introduced the joker into the deck shortly after the American Revolutionary War. In the European euchre game, the highest trump card is the Jack of the trump suit, called the right bower (from the German Bauer); the second-highest trump, the left bower, is the jack of the suit of the same color as trumps. The joker was invented c. 1860 as a third trump, the imperial or best bower, which ranked higher than the other two bowers.