BC-4th century AD The W Germanic peoples, originating in Scandinavia, moved into the region between the rivers Rhine, Elbe, and Danube, where they were confined by the Roman Empire. 496 The Frankish king Clovis conquered the Alemanni. 768-814 The reign of Holy Roman Emperor Charlemagne, who extended his authority over Germany and imposed Christianity on the Saxons. 814-919 After Charlemagne's death Germany was separated from France under its own kings while the local officials or dukes became virtually independent. 919-1002 Central power was restored by the Saxon dynasty. Otto I, who in 962 revived the title of emperor, began colonizing the Slav lands east of the river Elbe. 1075-1250 A feud between emperors and popes enabled the Germanic princes to recover their independence. 1493-1519 A temporary revival of imperial power took place under Maximilian I. 1521 The Diet of Worms at which Charles V confronted the Protestant Martin Luther. The Reformation increased Germany's disunity. 1618-48 The Thirty Years' War reduced the empire to a mere name and destroyed Germany's economic and cultural life. 1740-86 The rise of Brandenburg-Prussia as a military power, which had begun in the 17th century, reached its height under Frederick II. 1806 The French emperor Napoleon united W Germany in the Confederation of the Rhine and introduced the ideas and reforms of the French Revolution: his reforms were subsequently imitated in Prussia. The Holy Roman Empire was abolished. 1848 Ideas of democracy and national unity inspired the unsuccessful revolutions of 1848. 1867 The North German Confederation, under the leadership of Prussia, was formed. 1871 Under Chancellor Bismarck's leadership, the German Empire was formed after victorious wars with Austria and France. William I of Prussia became emperor. 1914-18 World War I: it was caused by Germany's political, industrial, and colonial rivalries with Britain, France, and Russia. 1918 A revolution overthrew the monarchy; the socialists seized power and established the democratic Weimar Republic. 1922-24 Rampant inflation. In 1922 one dollar was worth 50 marks; in 1924 one dollar was worth 2.5 trillion marks. 1929-33 The economic crisis brought Germany close to revolution, until in 1933 the reaction manoeuvred the Nazis into power with Adolf Hitler as chancellor. 1933-39 At home the Nazis solved the unemployment problem by a vast rearmament programme; they abolished the democratic constitution and ruthlessly destroyed all opposition. Abroad, the policy of geopolitical aggression led to war. 1939-45 World War II: Germany (from 1940 in an alliance known as the Axis with Italy and Japan) attacked and occupied neighbouring countries, but was defeated by the Allies (the UK and Commonwealth, France 1939-40, the USSR and the USA from 1941, and China). 1945-52 Germany was divided, within its 1937 frontiers, into British, US, French, and Soviet occupation zones. 1949 Germany was partitioned into the communist German Democratic Republic (see Germany, East) and the capitalist German Federal Republic (see Germany, West). 1990 Reunificiation of East and West Germany.