1920s — の歴史
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1920
In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the United States presidential election, 1920.
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1920
The New York State Assembly refuses to seat five duly elected Socialist assemblymen.
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1920
Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
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1920
The Kapp Putsch begins when the Marinebrigade Ehrhardt is ordered to march on Berlin.
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1920
The United States Senate rejects the Treaty of Versailles for the second time (the first time was on November 19, 1919).
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1920
Italy and the Kingdom of Serbs, Croats and Slovenes sign the Treaty of Rapallo.
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1920
Following more than a month of Turkish-Armenian War, the Turkish dictated Treaty of Alexandropol is concluded.
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1920
The second Palmer Raid takes place with another 6,000 suspected communists and anarchists arrested and held without trial. These raids take place in several U.S. cities.
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1920
Czechoslovak National assembly adopted the Constitution.
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1920
The Wall Street bombing: A bomb in a horse wagon explodes in front of the J. P. Morgan building in New York City killing 38 and injuring 400.
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1920
King Constantine I is restored as King of the Hellenes after the death of his son Alexander of Greece and a plebiscite.
Constantine I of Greece · Kingdom of Greece · Alexander of Greece
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1920
The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
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1920
ラトビアとソビエトの平和条約が署名され、ロシアのラトビアに対する権威と権利を放棄し、ラトビア独立戦争が終結した。
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1920
ブリクストン刑務所でのハンガーストライキ74日後に、コークのシン・フェイン市長テレンス・マクスウィーニーが死亡。
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1920
The Free City of Danzig is established.
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1920
Irish War of Independence: In retaliation for a recent IRA ambush, British forces burn and loot numerous buildings in Cork city. Many civilians report being beaten, shot at, robbed and verbally abused by British forces.
Irish War of Independence · Irish Republican Army · Burning of Cork
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1920
ヴェルサイユ条約が発効し、第一次世界大戦が公式に終結。
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1920
アメリカ自由人権協会（ACLU）が設立された。
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1920
Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
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1920
The Grand National Assembly of Turkey (TBMM) is founded in Ankara. The assembly denounces the government of Sultan Mehmed VI and announces the preparation of a temporary constitution.
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1920
The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
Nineteenth Amendment to the United States Constitution · Suffrage
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1920
Polish-Soviet War: A decisive Polish victory in the Battle of Komarów.
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1920
The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
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1920
Ernie Courtney, American baseball player (b. 1875)
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1920
Jaan Poska, Estonian lawyer and politician, 1st Estonian Minister of Foreign Affairs (b. 1866)
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1920
Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
Palm Sunday tornado outbreak of 1920 · Great Lakes · Deep South
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1920
オーストラリア共産党はシドニーで設立される。
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1920
Irish War of Independence: In Dublin, 31 people are killed in what became known as "Bloody Sunday".
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1920
Paul Adam, French author (b. 1862)
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1920
The Tartu Peace Treaty is signed between Estonia and Russia.
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1920
The Negro National League is formed.
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1920
Azeri and Turkish army soldiers with participation of Kurdish gangs attacked the Armenian inhabitants of Shushi (Nagorno Karabakh).
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1920
Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
South Braintree, Massachusetts · Anarchism · Sacco and Vanzetti
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1920
キエフ攻撃：ヨゼフ・ピョスツキとエドワード・リズ＝スミグリが率いるポーランド軍が、象徴的なウクライナ軍の支援を受けてキエフを占領したが、1ヶ月後には赤軍の反攻で追い出された。
Kiev Offensive (1920) · Second Polish Republic · Józef Piłsudski
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1920
The Greek Army takes control of Silivri after Greece is awarded the city by the Paris Peace Conference; by 1923 Greece effectively lost control to the Turks.
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1920
アメリカ合衆国憲法の第19条改正が効力を発揮し、女性に投票権が与えられた。
Nineteenth Amendment to the United States Constitution · United States Constitution
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1920
ロシア・ソビエト連邦社会主義共和国の第8回ソビエト大会でGOELRO経済発展計画が採択された。
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1920
France occupies Memel.
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1920
Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later.
Treaty of Moscow (1920) · Russian SFSR · Democratic Republic of Georgia
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1920
Fiammetta Wilson, English astronomer and educator (b. 1864)
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1920
At the San Remo conference, the principal Allied Powers of World War I adopt a resolution to determine the allocation of Class "A" League of Nations mandates for administration of the former Ottoman-ruled lands of the Middle East.
San Remo conference · Allies of World War I · League of Nations mandate
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1920
A Bolshevik coup fails in the Democratic Republic of Georgia.
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1920
The Art Gallery of Ontario, in Toronto, opens the first exhibition by the Group of Seven.
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1920
Polish-Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreshchatyk.
Polish-Soviet War · Edward Rydz-Śmigły · Kiev Offensive (1920)
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1920
Part of Petsamo Province is ceded by the Soviet Union to Finland.
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1920
Gaston Chevrolet, French-American race car driver and businessman (b. 1892)
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1920
Mohammed Abdullah Hassan, Somalian general, founded the Dervish state (b. 1856)
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1920
The steel strike of 1919 ends in a complete failure for the Amalgamated Association of Iron, Steel and Tin Workers labor union.
Steel strike of 1919 · Amalgamated Association of Iron and Steel Workers
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1920
The first game of the Negro National League baseball is played in Indianapolis.
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1920
In Rome, Pope Benedict XV canonizes Joan of Arc.
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1920
Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
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1920
Polish-Soviet War: Battle of Warsaw, which began on August 13, ends with the Red Army's defeat.
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1920
Qantas, Australia's national airline, is founded as Queensland and Northern Territory Aerial Services Limited.
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1920
Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
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1920
Amedeo Modigliani, Italian painter and sculptor (b. 1884)
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1920
The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
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1920
スリニヴァーサ・ラマヌジャン、インドの数学者および理論家（1887年生）
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1920
William H. Seward Jr., American general and banker (b. 1839)
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1920
Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
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1920
The Haiyuan earthquake, magnitude 8.5, rocks the Gansu province in China, killing an estimated 200,000.
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1920
The League of Nations holds its first council meeting in Paris, France.
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1920
オランダは、ドイツの亡命中的カイザーウィルヘルム二世を連合国に引き渡さないことを拒否。
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1920
元フォード・モーターカー社の経営者であるヘンリー・レーランドが、後に元雇用主に売却したリンカーン・モーターカー社を設立する。
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1920
Princess Margaret of Connaught (b. 1882)
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1920
Authorities arrest Nicola Sacco and Bartolomeo Vanzetti for alleged robbery and murder.
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1920
Levi P. Morton, American politician, 22nd United States Vice President (b. 1824)
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1920
The Soviet-Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
Soviet-Lithuanian Peace Treaty · Russian Soviet Federative Socialist Republic · Lithuania
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1920
The National Football League is organized as the American Professional Football Conference in Canton, Ohio
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1920
Foundation of the Spanish Legion.
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1920
Walter Simon, German banker and philanthropist (b. 1857)
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1920
Albert Gustaf Dahlman, Swedish executioner (b. 1848)
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1920
Ray Chapman of the Cleveland Indians is hit on the head by a fastball thrown by Carl Mays of the New York Yankees, and dies early the next day. Chapman was the second player to die from injuries sustained in a Major League Baseball game, the first being Doc Powers in 1909.
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1920
マックス・ブルック、ドイツの作曲家および指揮者（1838年生）
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1920
Irish War of Independence: Kilmichael Ambush: The Irish Republican Army ambush a convoy of British Auxiliaries and kill seventeen.
Irish War of Independence · Kilmichael Ambush · Irish Republican Army
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1920
Linton Hope, English sailor and architect (b. 1863)
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1920
The Polish Parliament establishes Silesian Voivodeship before the Polish-German plebiscite.
Second Polish Republic · Silesian Voivodeship (1920-39) · Upper Silesia plebiscite
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1920
Ion Dragoumis, Greek philosopher and diplomat (b. 1878)
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1920
サミュエル・グリフィス、ウェールズ系オーストラリアの政治家、クイーンズランド第9代首相（1845年生）
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1920
The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
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1920
Horace Elgin Dodge, American businessman, co-founded Dodge (b. 1868)
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1920
Olive Schreiner, South African author and activist (b. 1855)
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1920
Nancy Astor became the first woman to speak in the House of Commons of the United Kingdom following her election as a Member of Parliament (MP) three months earlier.
House of Commons of the United Kingdom
Nancy Astor, Viscountess Astor · House of Commons of the United Kingdom
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1920
シカゴで行われたアメリカ共和党全国大会の間、アメリカ共和党の指導者たちはブラックストーン・ホテルの部屋に集まり、大統領選挙の候補者に対する合意に至り、APが「煙に満ちた部屋」という政治用語を生み出した。
1920 Republican National Convention · Republican Party (United States) · Blackstone Hotel
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1920
Max Klinger, German painter and sculptor (b. 1857)