Major Events of April 1920: Key Historical Moments from the Month

Each month is marked by defining moments that shape the course of history. Whether through political shifts, cultural movements, or world-changing events, these periods leave a lasting impression. Dive into the most important events from April 1920 and discover how they influenced the world both then and now.

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Major Events of April 1920: Key Historical Moments from the Month


  • 01 Apr 1920 New York Expels Socialist Legislators: On April 1, 1920, the New York State Assembly expelled five Socialist Party members—August Claessens, Samuel A. DeWitt, Samuel Orr, Charles Solomon, and Louis Waldman—citing disloyalty due to their political affiliation. This action occurred during the First Red Scare, a period of heightened anti-socialist sentiment in the United States. source: en.wikipedia.org
  • 03 Apr 1920 Assassination Attempt on General Mannerheim in Tampere: On April 3, 1920, an assassination attempt was made on Finnish General Carl Gustav Emil Mannerheim in Tampere. Mannerheim, a key figure in Finland's struggle for independence, survived the attack, which was part of the political turmoil following Finland's independence from Russia. source: en.wikipedia.org
  • 06 Apr 1920 Far Eastern Republic established: The Far Eastern Republic was established on April 6, 1920, as a buffer state between Soviet Russia and Japan. It was a short-lived political entity that existed until 1922, primarily in the Russian Far East. source: britannica.com
  • 07 Apr 1920 Nebi Musa riots in Jerusalem: The Nebi Musa riots occurred on April 7, 1920, in Jerusalem, resulting from tensions between Jewish and Arab communities. The riots were part of a series of violent confrontations during the British Mandate in Palestine. source: britannica.com
  • 08 Apr 1920 Tragic Week in Guatemala: The Tragic Week in Guatemala began on April 8, 1920, marked by a series of violent protests against the government. This period was characterized by political repression and social unrest. source: britannica.com
  • 09 Apr 1920 Tragic Week in Guatemala: Political uprising in Guatemala City: On April 9, 1920, a political uprising occurred in Guatemala City during the Tragic Week, leading to significant unrest and government crackdowns. This event was part of a broader struggle for political reform in the country. source: britannica.com
  • 10 Apr 1920 Sonora's attempted secession from Mexico: On April 10, 1920, Sonora attempted to secede from Mexico amid political turmoil and dissatisfaction with the central government. This event was part of the broader revolutionary movements in Mexico during this period. source: britannica.com
  • 13 Apr 1920 Helen Hamilton Becomes First Woman US Civil Service Commissioner: On April 13, 1920, Helen Hamilton Gardener was appointed as a U.S. Civil Service Commissioner, becoming the first woman to hold such a position. source: historynewsnetwork.org
  • 21 Apr 1920 Bainbridge Colby establishes Declaration of Independence preservation committee: On April 21, 1920, U.S. Secretary of State Bainbridge Colby appointed a committee to study the preservation of the Declaration of Independence and other important documents. source: whathappenedinhistorytoday.wordpress.com
  • 23 Apr 1920 Founding of the Grand National Assembly of Turkey: On April 23, 1920, the Grand National Assembly of Turkey was founded, laying the foundation for the modern Turkish state. source: en.wikipedia.org
  • 24 Apr 1920 British Mandate over Palestine established: On April 24, 1920, the League of Nations granted Britain the mandate to govern Palestine, leading to significant geopolitical changes in the region. source: en.wikipedia.org
  • 25 Apr 1920 San Remo Conference: Middle East Mandate Allocation: The San Remo Conference, held from April 19 to 26, 1920, allocated mandates over former Ottoman territories. Britain received mandates for Palestine and Mesopotamia (Iraq), while France was granted the mandate for Syria and Lebanon. source: britannica.com
  • 26 Apr 1920 German Troop Withdrawal from Ruhr Valley: In April 1920, German troops withdrew from the Ruhr Valley, a region that had been occupied by Allied forces following World War I. This withdrawal was part of the implementation of the Treaty of Versailles, which aimed to demilitarize the area. source: en.wikipedia.org