page_title: 1920
section_title: April
hierarchical_section_title: 1920 / Events / April
caption_attribution_description: English: Poster of the 1920 olympic games. Printed in 90 000 copies in 17 languages plus French/Flamish bilingual versions.[1]
context_page_description: 1920 was a leap year starting on Thursday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1920th year of the Common Era and Anno Domini designations, the 920th year of the 2nd millennium, the 20th year of the 20th century, and the 1st year of the 1920s decade. As of the start of 1920, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.
context_section_description: April 2 – The German army marches to the Ruhr, to fight the Ruhr Red Army.
  April 4 – 1920 Palestine riots: Violence erupts between Arab and Jewish residents in Jerusalem; 9 are killed, 216 injured.
  April 6 – The short-lived Far Eastern Republic is declared, in eastern Siberia.
  April 11 – Mexican Revolution: Álvaro Obregón flees from Mexico City (during a trial intended to ruin his reputation) to Guerrero, where he joins Fortunato Maycotte.
  April 19–26 – San Remo conference: Representatives of Italy, France, the United Kingdom and Japan meet to determine the League of Nations mandates for administration of territories, following the partitioning of the Ottoman Empire.
  April 19 – Germany and Soviet Russia agree to the exchange of prisoners of war.
  April 20
  Mexican Revolution: Álvaro Obregón announces (in Chilpancingo) that he intends to fight against the rule of Venustiano Carranza.
  The 1920 Summer Olympics open in Antwerp, Belgium. The Olympic symbols of five interlocking rings and the associated flag are first displayed at the games.
  April 23 – The Grand National Assembly of Turkey is founded by Mustafa Kemal Atatürk, in Ankara. It denounces the government of Sultan Mehmed VI and announces a temporary constitution.
  April 24 – Polish–Soviet War: Polish and anti-Soviet Ukrainian troops attack the Red Army in Soviet Ukraine.
  April 26 – The Khorezm People's Soviet Republic is officially created by Soviet Russia, as the successor to the Khanate of Khiva.
  April 28 – The Azerbaijan Soviet Socialist Republic is officially created.
caption: 1920 Summer Olympics
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