, coming into contact with the Celtic tribes of Gaul as well as Iranian, Baltic, and Slavic tribes in Eastern Europe. Little is known about early Germanic history, except through their recorded interactions with the Roman Empire, etymological research and archaeological finds.[14] Under Augustus, the Roman General Publius Quinctilius Varus began to invade Germania (a term used by the Romans to define a territory running roughly from the Rhine to the Ural Mountains), and it was in this period that the Germanic tribes became familiar with Roman tactics of warfare while maintaining their tribal identity. In AD 9, three Roman legions led by Varus were defeated by the Cheruscan leader Arminius in the Battle of the Teutoburg Forest. Modern Germany, as far as the Rhine and the Danube, thus remained outside the Roman Empire. By AD 100, the time of Tacitus' Germania, Germanic tribes settled along the Rhine and the Danube (the Limes Germanicus) , occupying most of the area of modern Germany; Austria, southern Bavaria and the western Rhineland, however, were Roman provinces. The 3rd century saw the emergence of a number of large West Germanic tribes: Alamanni, Franks, Chatti, Saxons, Frisians, Sicambri, and Thuringii. Around 260, the Germanic peoples broke through the Limes and the Danube frontier into Roman-controlled lands.[15] Holy Roman Empire (962–1806) Main article: Holy Roman Empire See also: Medieval demography and Ostsiedlung The Imperial Crown of the Holy Roman Empire (Created around AD 1000). On 25 December 800, Charlemagne founded the Carolingian Empire, which was divided in 843. The medieval empire resulted from the eastern portion of this division and existed in varying forms from 962 until 1806. Its territory stretched from the Eider River in the north to the Mediterranean coast in the south. Often referred to as the Holy Roman Empire (or the Old Empire), it was officially called the Sacrum Romanum Imperium Nationis Germanicæ (Holy Roman Empire of the German Nation) starting in 1448, to adjust the title to its then reduced territory. Martin Luther, (1483–1546) initiated the Protestant Reformation. Under the reign of the Ottonian emperors (919–1024), the duchies of Lorraine, Saxony, Franconia, Swabia, Thuringia, and Bavaria were consolidated, and the German king was crowned Holy Roman Emperor of these regions in 962. Under the reign of the Salian emperors (1024–1125), the Holy Roman Empire absorbed northern Italy and Burgundy, although the emperors lost power through the Investiture Controversy. Under the Hohenstaufen emperors (1138–1254), the German princes increased their influence further south and east into territories inhabited by Slavs, preceding German settlement in these areas and further east (Ostsiedlung). Northern German towns grew prosperous as members of the Hanseatic League. Starting with the Great Famine in 1315, then the Black Death of 1348–50, the population of Germany plummeted.[16] The edict of the Golden Bull in 1356 provided the basic constitution of the empire that lasted until its dissolution. It codified the election of the emperor by seven prince-electors who ruled some of the most powerful principalities and archbishoprics. Beginning in the 15th century, the emperors were elected nearly exclusively from the Habsburg dynasty of Austria. The monk Martin Luther publicised his 95 Theses in 1517, challenging practices of the Roman Catholic Church, initiating the Protestant Reformation. A separate Lutheran church became the official religion in many German states after 1530. Religious conflict led to the Thirty Years' War (1618–1648), which devastated German lands.[17] The population of the German states was reduced by about 30%.[18] The Peace of Westphalia (1648) ended religious warfare among the German states, but the empire was de facto divided into numerous independent principalities. From 1740 onwards, the dualism between the Austrian Habsburg Monarchy and the Kingdom of Prussia dominated German history. In 1806, the Imperium was overrun and dissolved as a result of the Napoleonic Wars.[19] Restoration and revolution (1814–1871) Main article: German Confederation Frankfurt Parliament in 1848. Following the fall of Napoleon Bonaparte, the Congress of Vienna convened in 1814 and founded the German Confederation (Deutscher Bund), a loose league of 39 sovereign states. Disagreement with restoration politics partly led to the rise of liberal movements, demanding unity and freedom. These, however, were followed by new measures of repression on the part of the Austrian statesman Metternich. The Zollverein, a tariff union, profoundly furthered economic unity in the German states. During this era many Germans had been stirred by the ideals of the French Revolution, and nationalism became a more significant force, especially among young intellectuals. For the first time, the colours of black, red and gold were chosen to represent the movement, which later became the national colours.[20] In light of a series of revolutionary movements in Europe, which successfully established a republic in France, intellectuals and commoners started the Revolutions of 1848 in the German states. The monarchs initially yielded to the revolutionaries' liberal demands. King Frederick William IV of Prussia was offered the title of Emperor, but with a loss of power; he rejected the crown and the proposed constitution, leading to a temporary setback for the movement. Conflict between King William I of Prussia and the increasingly liberal parliament erupted over military reforms in 1862, and the king appointed Otto von Bismarck the new Prime Minister of Prussia. Bismarck successfully waged war on Denmark in 1864. Prussian victory in the Austro-Prussian War of 1866 enabled him to create the North German Federation (Norddeutscher Bund) and to exclude Austria, formerly the leading German state, from the affairs of the remaining German states. German Empire (1871–1918) Main articles: German Empire and World War I Foundation of modern Germany in Versailles, France, 1871. Bismarck is at the centre in a white uniform. The state known as Germany was unified as a modern nation-state in 1871, when the German Empire was forged, with the Kingdom of Prussia as its largest constituent. After the French defeat in the Franco-Prussian War, the German Empire was proclaimed in Versailles on 18 January 1871. The Hohenzollern dynasty of Prussia ruled the new empire, whose capital was Berlin. The empire was a unification of all the scattered parts of Germany except Austria (Kleindeutschland, or "Lesser Germany"). But internally the official political unification came rather sequentially: Germany had no national flag until 1892 and no national hymn until after WW I. Beginning in 1884, Germany began establishing several colonies outside of Europe. In the Gründerzeit period following the unification of Germany, Emperor William I's foreign policy secured Germany's position as a great nation by forging alliances, isolating France by diplomatic means, and avoiding war. Under William II, however, Germany, like other European powers, took an imperialistic course leading to friction with neighbouring countries. Most alliances in which Germany had been previously involved were not renewed, and new alliances excluded the country. Specifically, France established new relationships by signing the Entente Cordiale with the United Kingdom and securing ties with the Russian Empire. Aside from its contacts with Austria-Hungary, Germany became increasingly isolated. Imperial Germany (1871–1918), with the dominant Kingdom of Prussia in blue. Germany's imperialism reached outside of its own country and joined many other powers in Europe in claiming their share of Africa. The Berlin Conference divided Africa between the European powers. Germany owned several pieces of land in Africa including German East Africa, South-West Africa, Togo, and Cameroon. The Scramble for Africa caused tension between the great powers that may have contributed to the conditions that led to World War I. The assassination of Austria's crown prince on 28 June 1914 triggered World War I. Germany, as part of the unsuccessful Central Powers, suffered defeat against the Allied Powers in one of the bloodiest conflicts of all time. An estimated two million German soldiers died in World War I.[21] The German Revolution broke out in November 1918, and Emperor William II and all German ruling princes abdicated. An armistice putting an end to the war was signed on 11 November and Germany was forced to sign the Treaty of Versailles in June 1919. Its negotiation, contrary to traditional post-war diplomacy, excluded the defeated Central Powers. The treaty was perceived in Germany as a humiliating continuation of the war by other means and its harshness is often cited as having facilitated the later rise of Nazism in the country.[22] Weimar Republic (1919–1933) Main article: Weimar Republic Billboard advertising Die Dreigroschenoper by Bertolt Brecht. The Weimar era was dominated by political unrest. At the beginning of the German Revolution, Germany was declared a republic and the monarchy collapsed. However, the struggle for power continued, with radical-left communists seizing power in Bavaria, but failing to take control of all of Germany. The revolution came to an end in August 1919, when the Weimar Republic was formally established. The Weimar Constitution came into effect with its signing by President Friedrich Ebert on 11 August 1919. Suffering from the Great Depression, the harsh peace conditions dictated by the Treaty of Versailles, and a long succession of more or less unstable governments, the people of Germany increasingly lacked identification with their political system and the "Establishment Parties" in their parliamentary democracy. This was exacerbated by a widespread right-wing (monarchist, völkisch, and Nazi) Dolchstoßlegende, which promoted the view that Germany had lost World War I because of the efforts and influence of those who wanted to overthrow the government. The top brass of the Weimar government was accused of betraying the German Nation by signing the Versailles Treaty, while the radical left-wing communists, such as the Spartacist League, had wanted a revolution to abolish "capitalist rule" in favour of a Räterepublik, and were also targeted. Nevertheless, discontentment with the new Weimar government helped fuel the growth of the German Communist Party. Many conservatives were drawn towards the reactionary/revolutionary right, particularly the National Socialist German Workers Party—the Nazi Party. By 1932, these two parties controlled the majority of parliament (296 total parliamentary seats by July 1932). After a series of unsuccessful cabinets, President Paul von Hindenburg made a crucial decision: on 30 January 1933, seeing little alternative and pushed by right-wing advisors, von Hindenburg appointed Adolf Hitler as Chancellor of Germany, honoring Hitler's request. Third Reich (1933–1945) Main article: Nazi Germany Adolf Hitler, chancellor of the Großdeutsches Reich. On 27 February 1933, the Reichstag building went up in flames, and a consequent emergency decree abrogated basic citizen rights. An Enabling Act passed in parliament gave Hitler unrestricted legislative power. Only the Social Democratic Party voted against it, while Communist MPs had already been imprisoned.[23] Using his powers to crush any actual or potential resistance, Hitler established a centralised totalitarian state within months. Industry was revitalised with a focus on military rearmament.[24] In 1935, Germany reacquired control of the Saar and in 1936 military control of the Rhineland, both of which had been lost by the Treaty of Versailles. Leading to World War II and roughly in parallel with military rearmament, German foreign policy became more aggressive and expansionistic. In 1938 and 1939, Austria and Czechoslovakia were brought under control and the invasion of Poland prepared (Hitler-Stalin pact, Operation Himmler). On 1 September 1939, the German Wehrmacht launched a blitzkrieg on Poland, which was swiftly occupied by Germany and by the Soviet Red Army. The UK and France declared war on Germany marking the beginning of World War II in Europe. As the war progressed, Germany and its allies quickly gained control of much of continental Europe. Berlin in ruins after World War II, Potsdamer Platz 1945. On 22 June 1941, Germany broke the Hitler-Stalin pact and invaded the Soviet Union. The same year, Japan attacked the American base at Pearl Harbor, and Germany declared war on the United States as a consequence of its alliance with Japan. Although the German army advanced into the Soviet Union quite rapidly, the Battle of Stalingrad marked a major turning point in the war. Subsequently, the German army started to retreat on the Eastern front. In September 1943, Germany's ally Italy surrendered, and German forces were forced to defend an additional front in Italy. D-Day marked another major turning point in the war, opening up a Western front; the Allied forces landed on the beaches of Normandy and made advances towards German territory. Germany's defeat soon followed. On 8 May 1945, the German armed forces surrendered after the Red Army occupied Berlin. Approximately seven million German soldiers and civilians—including ethnic Germans from Eastern Europe—died during World War II.[25] In what later became known as The Holocaust, the Third Reich regime enacted governmental policies directly subjugating many dissidents and minorities. About seventeen million people were murdered during the Holocaust, including six million Jews and a sizable number of Gypsies, Poles and other Slavs, including Soviet POWs, the mentally ill, homosexuals, and members of the political opposition.[26] World War II and the Nazi genocide were responsible for more than 40 million dead in Europe.[27] The Nuremberg trials of Nazi war criminals were held after World War II.[28] Division and reunification (1945–1990) Main article: History of Germany (1945–1990) 1947, Occupation zones of Germany, in its 1919 borders, with territories east of the Oder-Neisse line given to Poland or annexed by Soviets, plus the Saar protectorate and divided Berlin. East Germany was formed by the Soviet Zone, while West Germany was formed by the American, British and French zones in 1949 and the Saar in 1957. The war resulted in the death of nearly ten million German soldiers and civilians;[citation needed] large territorial losses; the expulsion of about 15 million Germans from the eastern areas of Germany and other countries; rape of up to two million German women; and the destruction of multiple major cities. The remaining national territory and Berlin were partitioned by the Allies into four military occupation zones. The western sectors, controlled by France, the United Kingdom, and the United States, were merged on 23 May 1949, to form the Federal Republic of Germany (Bundesrepublik Deutschland); on 7 October 1949, the Soviet Zone became the German Democratic Republic (Deutsche Demokratische Republik, or DDR). They were, mainly outside Germany, informally known as "West Germany" and "East Germany" (in West Germany, East Germany referred to the areas east of the GDR, while the GDR was often referred to as Middle Germany), and the two parts of Berlin as "West Berlin" and "East Berlin". East Germany selected East Berlin as its capital, while West Germany chose Bonn. However, West Germany declared the status of its capital Bonn as provisional, in order to emphasise its stance that the two-state solution was an artificial status quo that was to be overcome one day.[29] West Germany, established as a federal parliamentary republic with a "social market economy", was allied with the United States, the UK and France. The country came to enjoy prolonged economic growth beginning in the early 1950s (Wirtschaftswunder). West Germany joined NATO in 1955 and was a founding member of the European Economic Community in 1957. On 1 January 1957, Saarland gave in its adhesion to West Germany by virtue of article 23 Grundgesetz. The Berlin Wall in front of the Brandenburg Gate shortly after the opening in 1989. East Germany was an Eastern bloc state under political and military control by the USSR via the latter's occupation forces and the Warsaw Treaty. While claiming to be a democracy, political power was solely executed by leading members (Politburo) of the communist-controlled SED (Socialist Unity Party of Germany). Their power was ensured by the Stasi, a secret service of immense size, and a variety of SED suborganizations controlling every aspect of society. In return, the basic needs of the population were satisfied at low cost by the state. A Soviet-style command economy was set up; later, the GDR became a Comecon state. While East German propaganda was based on the benefits of the GDR's social programs and the alleged constant threat of a West German invasion, many of her citizens looked to the West for political freedoms and economic prosperity.[30] The Berlin Wall, built in 1961 to stop East Germans from escaping to West Germany, became a symbol of the Cold War. Tensions between East and West Germany were somewhat reduced in the early 1970s by Chancellor Willy Brandt's Ostpolitik, which included the de facto acceptance of Germany's territorial losses in World War II. In the summer of 1989, Hungary decided (May 2) to dismantle the Iron Curtain and open the borders (August 23), causing an exodus of thousands of East Germans (September 11) going to West Germany via Hungary. The effects of the Hungarian events had devastating effects on the GDR, with mass demonstrations. The East German authorities unexpectedly eased the border restrictions in November, allowing East German citizens to travel to the West. Originally intended as a pressure valve to retain East Germany as a state, the opening of the border actually led to an acceleration of the Wende reform process in East Germany, which finally concluded with the Two Plus Four Treaty a year later on 12 September 1990, under which the four occupying powers renounced their rights under the Instrument of Surrender, and Germany regained full sovereignty. This permitted German reunification on 3 October 1990, with the accession of the five re-established states in the former GDR (New states or "neue Länder"). In 1999 Germany adopted the single European currency, the euro with German Euro-notes bearing serial numbers starting with a capital X. Berlin Republic and EU integration (1990–) Main article: History of Germany since 1990 Based on the Bonn-Berlin Act, adopted by the parliament on 10 March 1994, Berlin once again became the capital of the reunified Germany, while Bonn obtained the unique status of a Bundesstadt (federal city) retaining some federal ministries.[31][32] The relocation of the government was completed in 1999. Since reunification, Germany has taken a more active role in the European Union and NATO. Germany sent a peacekeeping force to secure stability in the Balkans and sent a force of German troops to Afghanistan as part of a NATO effort to provide security in that country after the ousting of the Taliban.[33] These deployments were controversial, since after the war, Germany was bound by domestic law only to deploy troops for defence roles. Deployments to foreign territories were understood not to be covered by the defence provision; however, the parliamentary vote on the issue effectively legalised the participation in a peacekeeping context. Geography Main article: Geography of Germany Topographic map The territory of Germany covers 357,021 km2 (137,847 sq mi), consisting of 349,223 km2 (134,836 sq mi) of land and 7,798 km2 (3,011 sq mi) of water.