1920
- 8 March: South Schleswig votes to rejoin Germany by 70%.
- 14 March: Central Schleswig votes to rejoin Germany by 80%.
- 20 March: North Schleswig votes to rejoin Germany by 90%.
- 19 April: Germany and Bolshevist Russia agree to exchange prisoners of war.
1921
- 16 January: Briand is elected President of France and begins negotiations with Foreign Minister Stresemann about reparations.
- 23 March: A plebiscite in Upper Silesia favours reunion with Germany.
- 3 May: Polish forces invade Upper Silesia.
- 4 May: Stresemann persuades Briand to force the Poles to leave.
1922
- 15 January: Stresemann secures loans to Germany, fixing the Reichsmark to a gold standard.
- 16 April: The Treaty of Rapallo is signed between Germany and Soviet Russia. Both countries renounce all territorial and financial claims against each other.
- 23 October: The German army crushes the Communist government in Saxony.
- 27 October: Mussolini establishes his fascist dictatorship in Italy.
1923
- 11 January: After a late reparations delivery, Stresemann persuades Briand to not send troops into the Ruhr.
- 13 August: Stresemann becomes the Chancellor of Germany and retains the portfolio of Foreign Minister.
- 4 December: A plebiscite in Eupen-Malmedy favours reunification with Germany.
1924
- 15 January: After heavy lobbying from the German government, a plebiscite is held in Alsace-Lorraine. It results in a stalemate and France threatens to invade unless Germany backs down. The German government propsoses a division of Alsace-Lorraine into Alsace (ceded to Germany) and Lorraine (ceded to France). Britain demands that France accept this proposal and eventually the French back down.
- 28 February: President Ebert makes a state visit to Great Britain. This marks an era of reconcilialation between Britain and Germany.
- 18 June: A plebiscite in Posen favours reunion with Germany.
- 1 December: The Treaty of Locarno is signed between Germnay and the Western countries, fixing Germany's western borders.
1925
- 14 January: Germany joins the League of Nations and becomes the fifth permanent Council member.
- 10 September: Germany successfully lobbies for a referendum in the Memel region, and they vote in favor of reunification with Germany.
- 3 October: The Nobel Committee announces that the Nobel Peace Prize will be awarded to Austen Chamberlain, Aristide Briand, and Gustav Stresemann for the Treaty of Locarno.
1926
- 24 April: Germany and the Soviet Union sign the Berlin Treaty, pledging neutrality in case of an attack on the other by a third party.
1927
- 9 November: Stresemann concludes the Treaty of Munich with Czechoslovakia, formally recognizing the border between Germany and Czechoslovakia in return for concessions to the German minority in the Sudetenland, including recognition of German as an official language of Czechoslovakia and a minimum number of spots in the Czech cabinet for ethnic Germans.
1928
- 24 October: Chancellor Stresemann dies of a heart attack. President Hindenburg decrees one day of national mourning.
1929
- 9 December: The stock market in Wall Street collapses and causes the Great Depression.
1930
- 20 June: Germany, Britain and France agree to a moratorium on reparations.
1931
- 11 May: Austria's largest bank collapses. Much of Central Europe sinks into further economic depression.
- 13 May: The Reichsbank begins to collapse but is saved by small loans from Britain and the United States.
1932
- 30 March: The German government undergoes a reformation and makes changes to the structure of the Reichsbank.
- 25 November: A new constitution is signed in Berlin, eradicating things like Article 48 and proportional representation.
1933
- 31 March: In Germany, the Construction Act is enacted and starts public work schemes such as the building of autobahns.
- 17 November: Germany enters the Washington Naval Conference.
1934
- 21 March: The Austrian Civil War starts between the Communists and the Fascists. The League of Nations declares an arms embargo on Austria.
- 23 March: Many scientists emigrate from Austria to Germany, including Albert Einstein.
- 19 December: Germany, Britain and France demand that Italy and the Soviet Union end their involvement in the Austrian Civil War.
1935
- 13 January: The Saar region votes to rejoin Germany by 90% in a plebiscite.
- 20 May: Under pressure from Great Britain and with worsening economic problems, France acquiesces to "limited" German rearmament. Afterward, the rapid ‘development’ of the Wehrmacht makes previous German covert rearming apparent, but the Great Powers turn a blind eye to this.
- 20 August: A token military force enters the Rhineland. The French government proclaims this as a great diplomatic victory, as the German force is not even strong enough to defend the Rhineland, posting no threat to France. The German government points to this as the full restoration of German sovereignty and the return of Germany as a full member of the international family of nations.
1936
- 10 July: The Spanish Civil War starts between Franco's fascist troops and the Republican government.
- 20 September: Fed up with the war in Austria and civil war in Spain, Britain and France allow Germany to intervene. German troops stream over the border and are greeted as saviours by the war-weary Austrians.
- 21 October: The Austrian Civil War comes to an end as Austria is under German military administration.
- 23 October: Germany and Czechoslovakia sign a pact of mutual defence.
1937
- 14 February: The Austrians hold a referendum overwhelmingly supporting unification with Germany. Though the Treaty of Saint Germaine forbade Austria from political or economic union with Germany, the Reich points out that they were not party to that agreement, and the Austrian government had essentially ceased to exist. World sentiment favours the unification.
- 12 April: Italy and Hungary establish a mutual defence treaty, called the Rome-Budapest Axis by Mussolini.
- 24 July: Germany proposes a plebiscite in Danzig and the Polish Corridor. Poland opposes the idea.
- 20 August: The Polish President believes that Poland could win the referendums in the Polish Corridor and Danzig and insists that they be held by September. Germany agrees.
- 15 September: The Polish Corridor plebiscite favours reunification with Germany.
- 16 September: Polish forces launch an invasion of the Polish Corridor, insisting that the Germans rigged the referendum.
- 17 September: German forces start an aerial invasion of Danzig and the Polish Corridor. Even Czech forces appear to be mobilising into Galicia.
- 18 September: German and Czech forces have assumed defensive positions and haven't carried out any more incursions into Poland.
- 19 September: Britain and France insist that the Poles meet for mediation with the Germans and Czechs and persuade them to accept the new boundaries.
- 20 September: Germany accepts her Eastern borders with Poland and Lithuania.
1938
- 15 January: Poland joins the Axis.
- 1 May: Germany, Finland, Lithunia, Estonia, Latvia and Czechoslovakia announce a European Alliance to defend against Communism and Fascism. Quietly, Britain has given assurances of support for the group.
1939
- 9 February: Bulgaria joins the Axis with Italy, Hungary and Poland.
- 17 April: Italy invades Albania.
- 23 June: The Nationalists have taken Madrid and Franco declares victory, becoming the fascist dictator of Spain.
- 1 October: Italy, Hungary and Bulgaria invade Yugoslavia, threatening the complete partition the country. Within days, Yugoslavia stands on the brink of collapse. German forces in German Austria mobilize along the border, but the British and French demand that the Italians meet for mediation.
- 4 November: The Trieste Conference results in Italy and her allies being forced by France and the UK to accept token concessions: some Dalmatian coast and islands for Italy, and strips of adjacent land to the borders of Hungary and Bulgaria. Britain is able to demand that the concessions do not cut Yugoslav borders off from other nations in the area.
- 9 December: Yugoslavia requests admission to the Northern European Alliance. After heavy lobbying from the German government, the Alliance accepts them.
1940
- 1 September: After the break-down of negotiations for Romania to join the Axis Pact of Steel and the fear that Romania will join the European Alliance, Hungary and Bulgaria launch an invasion of Romania.
- 25 December: Hungarian and Bulgarian forces retreat from Romania.
1941
- 20 January: Romania joins the European Alliance.
- 9 August: The Second Russo-Japanese War begins.
- 24 December: Hungary and Bulgaria give up at their attempt on Romania.
1942
- 15 May: China and Japan agree to a ceasefire.
- 12 July: Russian forces push the last of the Japanese troops out of Manchuria.
- 10 August: Soviet troops begin an invasion of Korea.
1943
- 1 May: Alarmed at the aggressiveness of the Soviet Union in the Far East, Sweden and Norway agree to join the European Alliance.
- 18 June: The Second Russo-Japanese War ends. Manchuria is returned to China but it remains in the Soivet sphere of influence. Korea is divided into North Korea (a Communist country under Soviet conrol) and South Korea (under Japanese control).
- 28 October: Italy and Bulgaria launch an invasion of Greece. The Greek army displays stubborn resistance and are being supplied by Britain from Egypt.
- 1 December: Germany and the European Alliance demand that the Axis' withdraw from Greece or face war.
- 2 December: The EA's armed forces begin mobilising. The Axis hold an emergency conference in Rome.
- 3 December: The Axis begin withdrawing from Greece. Britain joins the European Alliance while Greece and Turkey are invited to join.
1944
- 7 February: Turkey joins the European Alliance.
- 21 February: Greece joins that EA.
- 8 December: Denmark joins the European Alliance.
1945
- 2 March: Italians cross into Tunisia from Libya. A border skirmish erupts and several people die. Mussolini demands an apology from the French government.
- 9 March: Mussolini starts a military build-up in Libya.
- 4 April: Italian forces cross into Tunisia. French troops retreat north.
- 19 April: Mussolini begins an air campaign directed at the French airfields of Corsica and southern France.
- 20 April: French Somalialand surrenders to Italy.
- 6 June: Italy begins destroying the French fleet in the Mediterranean Sea.
- 10 June: The Italian air force starts bombing cities such as Nice and Marseilles.
- 5 August: French forces invade southern Libya from French Guinea.
- 13 August: Tripoli falls to France.
- 22 August: Germany promises to stay neutral in this conflict. Franco ignores Mussolini's pleas to join the Axis and enter the war.
- 24 August: French forces reinvade Tunisia. Italian Somalialand surrenders to French troops.
- 25 October: The German-speaking portion of Tyrol rises up and declares itself free of Italy. German troops in Austria are asked by the leaders of the revolt to march in and restore order to Tyrol.
- 13 November: France begins an aerial campaign on Corsica and Sardinia.
- 9 December: Italy sues for peace. Mussolini is replaced with Ciano.
1946
- 29 January: The Treaty of Nice is mediated by Britain. The French recovered French Somaliland and kept Libya and Sardinia. Albania was granted its independence. Abyssinia also regained its independence once more and was given Eritrea as a sea access. Italian Somaliland stayed in the hands of the Italians. The Franco-Italian border was demilitarized. The Italian army was reduced to 200,000 men and prohibited from having chemical weapons or armored vehicles. Also, the two newest remaining battleships, the Littorio and the Vittorio Veneto were taken by the French as war booty while the Italian navy had to discard their submarine fleet and was prohibited from building more battleships, aircraft carriers or ships with guns bigger than 12”.
- 30 January: Italy agrees to cede Tyrol to Germany.
1947
- 20 April: Germany successfully tests its first atomic bomb.
- 30 July: The German government starts up a massive social welfare programme and passes various equal and civil rights legislation.
1948
- 12 March: A coalition of monarchist and anarchists launch a coup against the fascist government and is covertly supported by the Germans. The Hapsburg Dynasty is restored and they renounce all claims of land outside Hungary proper. German Austria gets some land from Hungary and Yugoslavia.
1949
- 19 April: Germany annexes Luxembourg.
- 20 April: Austria annexes Leichtenstein.
- 29 December: Germany and Spain sign a mutual defence treaty.
1950
- 3 March: Poland ends diplomatic relationships with Germany and cuts off all trade with the Reich.
- 4 March: The Polish government claims that it intends to exile all Germans from Poland.
- 1 October: Berlin Film Studios announce that they have outdone Hollywood for three years.
- 18 October: Poland deports all Germans to their home country.
1951
- 9 May: The Polish government exiles Czechs to Czechoslovakia and enters a period of isolationalism.
- 11 July: Belgium joins the European Alliance.
1952
- 6 February: The Sino-Soviet War starts over several border disputes.
- 8 July: Talks between Greece and Turkey regarding Cyprus end in no clear path again so it remains in British hands.
1953
- 5 March: The United States of America joins the League of Nations.
- 10 March: The Treaty of Beijing is signed between China and the Soviet Union. China loses land to Russia.
- 19 October: Portugal joins the European Alliance.
1954
- 18 May: At the request of the Czech government, Germany forms an economic union with Czechoslovakia.
- 27 May: After apparent threats from the Soviet Union, Czechoslovakia allows German troops to be stationed there (similar to the status of Austria - economic union and military presence but no proper political unification).
1955
- 22 January: Hungary joins the European Alliance.
- 6 June: Poland re-establishes diplomatic relations with the European Alliance.
- 8 June: Poland sign trade agreements with Hungary and Czechoslovakia.
- 5 July: China and Japan agree to an alliance against the Soviet Union.
1956
- 20 June: Germany holds the Great Transportation Exposition in Berlin. It features many military displays, including aircraft shows. The Zeppelin line is shown while many Germany celebrities use the chance to show off.
- 8 September: Bulgaria joins the European Alliance.
1957
- 3 March: Germany launches the first satellite into orbit but cannot continue its space program alone. It begins to look for partners for space exploration.
- 11 November: The Netherlands joins the European Alliance.
1958
- 4 July: Germany, Britain and the United States pool their resources to launch a joint space initiative, the North Atlantic Space Agency. Czechoslovakia, Austria and other EA members soon join.
- 5 November: The United States becomes the sixth permanant member of the Council of the League of Nations.
1959
- 1 January: Italy joins the European Alliance, fearful of their powerful French neighbour and hoping to establish friendship with Britain and Germany.
- 5 August: The United States and the Phillippines conclude negotiations with the Sino-Japanese Co-Prosperity Sphere to form the Pacific Co-Prosperity Sphere.
1960
- 19 September: Franco is assassinated by a car bomb. His will re-establishes the monarchy and names Prince Juan Carlos of Bourbon as King.
- 30 October: Italy grants independence to its last African colony, Italian Somalialand.