The Kingdom of Germany (also referred to as the German Kingdom; Latin Regnum Teutonicum) developed out of the eastern half of the former Carolingian Empire.
Like medieval England and France, it began as "a conglomerate, an assemblage of a number of once separate and independent... gentes [peoples] and regna [kingdoms]."East Francia was formed in embryo by the Treaty of Verdun in 843, and was ruled by the Carolingian dynasty until 911, after which the kingship was electoral. The initial electors were the rulers of the stem duchies, who generally chose one of their own. After 962, when Otto I was crowned emperor, the kingdom formed the bulk of the Holy Roman Empire, which also included Italy (from 951) and Burgundy (after 1032).
The term rex teutonicorum (king of the Germans) first came into use in the chancery of Pope Gregory VII during the Investiture Controversy (late 11th century), perhaps as a polemical tool against the Emperor Henry IV. In the twelfth century, in order to stress the imperial and transnational character of their office, the emperors began to employ the title rex Romanorum (king of the Romans) on their election (by the prince-electors, seven German bishops and noblemen). Distinct titulature for Germany, Italy and Burgundy, which traditionally had their own courts, laws, and chanceries, gradually dropped from use. After the Reichsreform and Reformation settlement, the German part of the Holy Roman Empire was divided into Reichskreise (imperial circles), which effectively defined Germany against imperial Italy and the Kingdom of Bohemia. The archepiscopal electors continued to bear the titles of chancellors of Germany, Italy and Burgundy. After the Peace of Westphalia (1648), Germany was effectively a congeries of independent states and statelets, over which the remaining institutions of Kingdom and Empire claimed a declining authority.
Germany (i/ˈdʒɜrməni/), officially the Federal Republic of Germany (German: Bundesrepublik Deutschland, pronounced [ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant] ( listen)), is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate. With 81.8 million inhabitants, it is the most populous member state and the largest economy in the European Union. It is one of the major political powers of the European continent and a technological leader in many fields.
A region named Germania, inhabited by several Germanic peoples, was documented before AD 100. During the Migration Period, the Germanic tribes expanded southward, and established successor kingdoms throughout much of Europe. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire. During the 16th century, northern German regions became the centre of the Protestant Reformation while southern and western parts remained dominated by Roman Catholic denominations, with the two factions clashing in the Thirty Years' War, marking the beginning of the Catholic–Protestant divide that has characterized German society ever since. Occupied during the Napoleonic Wars, the rise of Pan-Germanism inside the German Confederation resulted in the unification of most of the German states into the German Empire in 1871 which was Prussian dominated. After the German Revolution of 1918–1919 and the subsequent military surrender in World War I, the Empire was replaced by the Weimar Republic in 1918, and partitioned in the Treaty of Versailles. Amidst the Great Depression, the Third Reich was proclaimed in 1933. The latter period was marked by Fascism and World War II. After 1945, Germany was divided by allied occupation, and evolved into two states, East Germany and West Germany. In 1990 Germany was reunified.