|January 8, 1926
||Ibn Saud Proclaimed King of Hejaz
||After a successful military campaign which led to the capture of Jidda, Abd al-Aziz ibn Saud became the King of
|January 13, 1926
||In response to the League's recommendation that Britain's role in Iraq should be extended if Iraq received the Mosul region, the British and Iraqi governments signed a new treaty extending their relationship for 25 years or until Iraq joined the League of Nations.
|January 14, 1926
||Emiliano Chamorro gained control of the presidency of Nicaragua, but the U.S. government refused to extend recognition of the new Nicaraguan government.
|January 14-30, 1926
||Nordic Pacific Settlement Agreements
||The Danish, Finnish, Norwegian, and Swedish governments signed a series of agreements which provided for the pacific settlement of all disputes in the Nordic region.
|January 21, 1926
||Opening of Makwar Dam
||The opening of the Makwar (Senaar) Dam in Anglo-Egyptian Sudan marked the Sudanese utilization of Nile River water for irrigation purposes. The Egyptians opposed the project since cultivation and water diversion in the Sudan could deprive the Egyptians of their critical water supply.
|January 27, 1926
||Senate Approval of World Court Membership
||The U.S. Senate approved United States adherence to the World Court Protocol, but attached a number of reservations designed to protect American interests. The members of the World Court found most of the reservations acceptable, except for a reservation regarding advisory opinions by the court. Since an agreement could not be reached on this issue, the U.S. did not join the World Court at that time.
|January 31, 1926
||First Rheinland Zone Evacuated
||In light of improved relations between Germany and the Western powers, French forces conducted the first evacuation of the
||Southern Tyrol Tensions
||Relations between the German and Italian governments became acutely strained due to the ruthless policy of Germanization in the southern Tyrol.
|February 2-May 26, 1926
||Tenth Session of the Permanent Court of International Justice
||The Permanent Court of International Justice held its tenth (extraordinary) session in the Hague.
|February 10, 1926
||German Application to the League
||The German government applied for membership in the League of Nations in accord with the Locarno Treaties. Germany's admission was postponed due to disputes regarding the distribution of seats on the Council.
|February 11, 1926
||Mexican Nationalization of Church Property
||The Mexican government instituted an anti-clerical policy and nationalized the property of the Roman Catholic Church.
|February 12, 1926
||Thirty-Eighth League Council Session
||The League of Nations Council held its thirty-eighth (extraordinary) session in Geneva.
|March 8-17, 1926
||Special League Assembly Session
||The League of Nations Assembly held a special session in Geneva under Alfonso Costa (Portugal).
|March 8-18, 1926
||Thirty-Ninth League Council Session
||The League of Nations Council held its thirty-ninth session in Geneva.
|March 12, 1926
||The Danish Parliament voted for almost complete disarmament, a policy the government implemented.
|March 17, 1926
||Delay of German Admission into the League
||Germany's admission into the League of Nations was delayed because of complications raised by Brazil and Spain regarding the allocation of the Council's permanent seats.
|March 26, 1926
||Polish-Romanian Treaty of Alliance
||The Polish and Romanian governments signed a Treaty of Alliance to bolster security in Eastern Europe.
||Franco-Moroccan Peace Negotiations
||The French government participated in Moroccan peace talks with Abd el-Krim without concrete results.
||French War Debt Agreement
||The French government negotiated a settlement of its war debt with the U.S. government. The French agreed to repay their debts over a period of 62 years at an interest rate of 1.6 percent.
||Conference on Motor Traffic
||The League of Nations hosted a conference on motor traffic in Paris to improve international traffic problems.
|April 22, 1926
||Persian-Turkish-Afghan Treaty of Mutual Security
||The Iranian, Turkish, and Afghan governments signed a Treaty of Mutual Security under Soviet auspices. Despite the agreement, friction between Iran, Turkey, and Iraq over the Kurdish population undermined better relations between the nations.
|April 24, 1926
||German-Soviet Treaty of Neutrality and Friendship
||The German and Soviet governments extended the treaty of neutrality and friendship marked by the Treaty of Rapallo of 1922.
|May 2, 1926
||Sandinista Revolt in Nicaragua
||General Augustino Sandino launched a Liberal revolt against the Chamorro government. In response, the U.S. government immediately dispatched military forces to Nicaragua.
|May 3, 1926
||International Congress on Critical Drama and Theater
||The League of Nations sponsored a congress in Geneva to promote critical drama and theater.
|May 7, 1926
||Franco-Spanish Offensive in Morocco
||In response to the failed peace talks, the French and Spanish governments launched a new offensive against the
|May 7-19, 1926
||Second Druse Offensive on Damascus
||The Druse launched a second major offensive on Damascus, forcing the French to withdraw again from the city. The French responded with a major bombardment of the city.
|May 12-18, 1926
||Second International Passport Conference
||The League of Nations hosted a second conference in Geneva on passport standardization to promote international travel.
|May 18-26, 1926
||Preparatory Commission on Disarmament Meeting
||Appointed by the League of Nations in 1925, the first meeting of the Preparatory Commission on Disarmament met. The United States sent representatives and the Soviet Union joined the deliberations in 1927.
|May 22, 1926
||Belgian Neutrality Treaty
||The British and French governments signed an agreement with the Belgian government formally abrogating the Treaty of 1839.
|May 23, 1926
||Proclamation of Great Lebanon
||The French established the republic of Great Lebanon.
|May 24, 1926
||Mexican Nationalization of Minerals and Oil
||The Mexican government announced the nationalization of sub-soil resources (minerals and petroleum) which clouded the property rights of foreign resource extraction companies. This marked the beginning of growing economic tensions between the U.S. and Mexican governments.
|May 26, 1926
||End of Riffian War
||Abd el-Krim surrendered to the French and Spanish ending the Riffian War, which began in 1921. The French exiled Abd el-Krim to the island of Reunion.
|May 26-June 5, 1926
||Eighth Session of the International Labor Conference
||The International Labor Organization (BIT) held its eighth session in Geneva under the chairmanship of Mgr. W.A. Nolens (the Netherlands). The major issue at this conference was the simplification of emigrant inspections on board ships.
||End of League Control of Hungarian Finances
||The League of Nations ended its reconstruction of the Hungarian economy with the restoration of economic growth in Hungary.
|June 5, 1926
||Anglo-Turkish Agreement on Mosul
||The British and Turkish governments signed a final treaty on the disposition of the Mosul region based on the decision reached by the League of Nations.
|June 7-10, 1926
||Fortieth League Council Session
||The League of Nations Council held its fortieth session in Geneva.
|June 7-24, 1926
||Ninth Session of the International Labor Conference
||The International Labor Organization (BIT) conducted its ninth session in Geneva, under the chairmanship of Viscount Burnham (Britain). This session addressed issues such as seamen's articles of agreement and the repatriation of sailors.
|June 10, 1926
||Spanish Withdrawal from League
||The Spanish government announced that Spain would withdraw from the League of Nations over the issue of obtaining a permanent seat on the Council. The government later rescinded the decision and remained a member.
|June 10, 1926
||Franco-Romanian Treaty of Friendship
||The French and Romanian governments signed a Treaty of Friendship to bolster security in Eastern Europe.
|June 10, 1926
||League Loan to Bulgaria
||The League of Nations granted a large loan to the Bulgarian government to facilitate the settlement of refugees in the region.
|June 12, 1926
||Brazilian Withdrawal from the League
||The Brazilian government announced its intentions to withdraw from the League of Nations after failing to secure a permanent seat on the League Council. Unlike the Spanish, the Brazilians followed through with their threat and the withdrawal became effective two years later.
|June 12, 1926
||International Congress of the International Press
||The League of Nations sponsored a conference in Geneva for international press representatives.
|June 14, 1926
||Congress of Dramatic Authors and Composers
||To promote the arts around the world, the League of Nations hosted a conference in Geneva for dramatic authors and composers.
|June 15-July 26, 1926
||Eleventh Session of the Permanent Court of International Justice
||The Permanent Court of International Justice held its eleventh session in the Hague.
|June 19, 1926
||Ethiopian Protest of Anglo-Italian Note
||The Ethiopian government protested against the Anglo-Italian Notes of 1925 which threatened Ethiopian sovereignty. Both the British and Italian governments offered assurances of continued support of Ethiopian authority.
|June 21, 1926
||Congress for Mutual Assistance between Universities
||To support international education, the League of Nations hosted a conference in Warsaw on mutual assistance between universities.
||Stalin's Consolidation of Power over the Soviet Union
||Josef Stalin defeated Leon Trotsky and the Leftist opposition bloc by declaring a policy of Socialism in one country. Trotsky insisted that a Communist regime in one country was an anomaly and the Proletarian Revolution would only be safe when the entire world had embraced Socialism.
||End of League Control of Austrian Finances
||The League of Nations officially discontinued its control of Austrian finances with a resurgence in the Austrian economy.
||Chiang Kai-shek's Northern Campaign
||With the support of the Russians, Chiang Kai-shek and the Kuo Min Tang fought a successful campaign against the Chinese war lords in northern China, eventually seizing control of Hankou (Hankow) and Wuchang
|July 1, 1926
||Anglo-Portuguese Agreement on Southern Africa
||The British and Portuguese governments defined the border between Angola and Southwest Africa at the Kuene River.
|July 2, 1926
||Mexican Anti-Clerical Legislation
||The Mexican government passed legislation which undermined the power of the Roman Catholic Church in Mexico and threatened relations with the Vatican.
|July 10, 1926
||Macedonian Raid against the Kingdom of the Serbs-Croats-Slovenes
||Macedonians from Bulgarian mounted a large raid across the border of the Kingdom of the Serbs-Croats-Slovenes. This marked the beginning of a series of raids in the Balkans.
|July 26, 1926
||Philippine Independence Resolution
||The Philippine legislature adopted a plebiscite resolution on independence, but the governor vetoed the measure.
|July 28, 1926
||Panama Canal Treaty
||American and Panamanian delegates negotiated a treaty designed to protect the Panama Canal in time of war. The treaty provided that Panama would consider itself at war when the U.S. became a belligerent and permitted peacetime American military maneuvers on Panamanian territory. The treaty raised a great storm of protest in Panama over the violation of national sovereignty.
|July 30, 1926
||Albanian Border Treaty
||Delegates from Britain, France, Greece, Italy, and the Kingdom of the Serbs-Croats-Slovenes signed the final act which settled the frontiers of Albania.
|August 7, 1926
||Spanish-Italian Treaty of Friendship
||The Spanish and Italian governments signed a Treaty of Friendship marking Italian efforts to establish a closer relationship with the Spanish.
|August 11, 1926
||Balkan Note Condemning Macedonian Raids
||Representatives from Greece, Romania, and the Kingdom of the Serbs-Croats-Slovenes sent diplomatic notes to the Bulgarian government demanding the end to the Macedonian raids. The Bulgarian government proved unable to prevent the border violations.
|August 17, 1926
||Government representatives from Greece and the Kingdom of the Serbs-Croats-Slovenes signed an agreement settling the question of a Yugoslav free port at
|August 31, 1926
||Soviet-Afghan Pact of Neutrality and Non-Aggression
||The Soviet and Afghan governments signed a Pact of Neutrality and Non-Aggression which supplemented an earlier agreement.
|September 2, 1926
||Italo-Yemeni Treaty of Friendship
||The Italian government and the Imam of Yemen signed a Treaty of Friendship. This marked the first attempt of the Italian government to establish influence on the east coast of the Red Sea.
|September 2-7, 1926
||Forty-First League Council Session
||The League of Nations Council held its forty-first session in Geneva.
|September 6-25, 1926
||Seventh League Assembly Session
||The League of Nations Assembly held its seventh session in Geneva under Momchilo Ninchich (Yugoslavia).
|September 8, 1926
||German Admission to the League
||The League of Nations formally admitted Germany as a member and the Germans received a permanent seat on the Council.
|September 16, 1926
||Italo-Romanian Treaty of Friendship
||The Italian and Romanian governments signed a Treaty of Friendship by which the Italians offered the Romanians a large loan in return for oil and other concessions.
|September 16-20, 1926
||Forty-Second League Council Session
||The League of Nations Council held its forty-second session in Geneva.
|September 18, 1926
||Greco-Polish Treaty of Friendship
||The Greek and Polish governments signed a Treaty of Friendship.
|September 23, 1926
||The U.S. government negotiated an armistice between the political factions in Nicaragua. Emiliano Chamorro resigned as president and the Nicaraguan Congress met to select a new president.
|September 26, 1926
||International Slavery Convention
||Twenty nations signed the International Slavery Convention outlawing the institution.
|September 27-30, 1926
||International Film Congress
||To support the visual arts, the League of Nations hosted an international film congress in Geneva.
||End of Chinese Boycott of British Goods
||The British relented on the "unequal treaties" issue and the Chinese ended their strikes and boycotts of British goods.
|October 15, 1926
||International Congress of Expert Surveyors
||To standardize surveying techniques around the world, the League of Nations hosted a conference in Geneva on surveying.
|October 19-November 18, 1926
||Commonwealth delegates, meeting in London, declared that Britain and the Dominions were autonomous communities within the British Empire, equal in status, and were not subordinate to any other in respect to their domestic or external affairs but were united by a common allegiance to the crown and freely associated as members of the British Commonwealth of Nations.
|November 1926-July 1927
||The Dutch suppressed a Communist revolution in Java in the Dutch East Indies with great difficulty.
|November 2, 1926
||Catalonian Coup Attempt
||Separatists operating from France attempted to mount a coup in Catalonia against Spanish rule.
|November 6, 1926
||The British Parliament appointed the Statutory Commission to investigate the political situation in India and the operation of the Montagu-Chelmsford system. While Parliamentary commission included members of all of the British political parties, they failed to include Indian members and both Hindus and Muslims voted to boycott the commission investigation. The result was further political disorder in India.
|November 5-6, 1926
||Congress of the International Union of Press Journalists
||In an effort to support international news coverage and distribution, the League of Nations supported a conference in Geneva on press issues.
|November 10, 1926
||Canadian-U.S. Diplomatic Relations
||The Canadians appointed their first diplomatic minister in Washington, DC, Vincent Massey.
|November 11, 1926
||New Nicaraguan Government
||The Nicaraguan Congress elected Adolfo Diaz (Conservative) as the new president of Nicaragua, which alienated the Liberals and laid the ground for renewed civil war.
|November 20-26, 1926
||Northern Albanian Insurrection
||The Albanian government suppressed an insurrection in the north with difficulty. The rebels reportedly received support from the Kingdom of the Serbs-Croats-Slovenes.
|November 27, 1926
||Treaty of Tirana
||The Italian and Albanian governments signed a treaty establishing a de facto Italian protectorate over Albania. The two governments agreed to work together to maintain the Albanians' territorial status quo and the Italians promised not to interfere in Albanian affairs without request.
|December 2, 1926
||Nicaraguan Civil War
||Juan Sacasa, former Liberal vice president, returned from exile in Mexico and established a Liberal government which received recognition from the Mexican government. A civil war between the Liberals and Conservatives ensued with the U.S. supporting Adolfo Diaz (Conservative).
|December 6-11, 1926
||Forty-Third League Council Session
||The League of Nations Council held its forty-third session in Geneva.
|December 7, 1926
||Thompson Report on the Philippines
||Carmi Thompson investigated conditions in the Philippines and recommended the postponement of independence. He suggested that the U.S. government should extend Philippines home rule and that the Philippine government should liquidate its business enterprises.