Major Events of October 1917: 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 October 1917 and discover how they influenced the world both then and now.

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Major Events of October 1917: Key Historical Moments from the Month


  • 01 Oct 1917 German Air Raid and Polygon Wood Counterattack during World War I: On October 1, 1917, German forces conducted an air raid and launched a counterattack during the Battle of Polygon Wood. These actions were part of Germany's efforts to disrupt Allied advances in the region. source: en.wikipedia.org
  • 02 Oct 1917 Christian de Duve: Nobel Laureate Biologist: Christian de Duve, a Belgian cytologist and biochemist, was born on October 2, 1917, in Thames Ditton, Surrey, England. He is renowned for discovering lysosomes and peroxisomes, for which he shared the Nobel Prize in Physiology or Medicine in 1974 with Albert Claude and George Palade. source: britannica.com
  • 07 Oct 1917 Birth of June Allyson: June Allyson, born Eleanor Geisman, was an American actress known for her roles in films such as "Two Girls and a Sailor" and "Little Women." She was born on October 7, 1917, in The Bronx, New York. source: en.wikipedia.org
  • 08 Oct 1917 Trotsky leads Petrograd Soviet: On October 8, 1917, Leon Trotsky was elected chairman of the Petrograd Soviet, a significant position during the Russian Revolution. source: wsws.org
  • 11 Oct 1917 Armenian National Congress convenes in Tbilisi: The Armenian National Congress, representing Armenians from across the Russian Empire, convened at the Artistic Theatre in Tbilisi. Dominated by the Dashnak Party, the congress aimed to address the challenges faced by Armenians during World War I and the Russian Revolution. source: en.wikipedia.org
  • 12 Oct 1917 First Battle of Passchendaele in World War I: The First Battle of Passchendaele, also known as the Third Battle of Ypres, commenced on this date. It was one of the major battles of World War I, characterized by heavy casualties and challenging conditions. source: en.wikipedia.org
  • 13 Oct 1917 Miracle of the Sun at Fatima: On this date, the Miracle of the Sun occurred in Fatima, Portugal. Thousands of people witnessed the phenomenon, which was interpreted as a supernatural event by many. source: en.wikipedia.org
  • 14 Oct 1917 German submarine UC-62 sinks in North Sea: German submarine UC-62 was sunk in the North Sea on this date during World War I. source: en.wikipedia.org
  • 15 Oct 1917 Execution of Mata Hari: Mata Hari, a Dutch exotic dancer and courtesan, was executed by a French firing squad on October 15, 1917, near Paris. She was accused of espionage for Germany during World War I, though the evidence against her remains a subject of historical debate. source: britannica.com
  • 21 Oct 1917 Petrograd Garrison Joins Bolshevik Revolution: On October 21, 1917, the Petrograd garrison, comprising hundreds of thousands of soldiers, pledged support to the Military Revolutionary Committee (MRC), signaling a significant shift in power dynamics in Petrograd. This move was pivotal in the lead-up to the October Revolution, as the MRC began appointing new commissars to military units, effectively taking control of the city's military forces. source: workers.org
  • 25 Oct 1917 Bolshevik Revolution Commences: On October 25, 1917, the Bolsheviks initiated the October Revolution by seizing key government facilities in Petrograd, leading to the overthrow of the Provisional Government and the establishment of Bolshevik rule in Russia. source: britannica.com
  • 26 Oct 1917 Battle of Caporetto: A Decisive World War I Engagement: On October 26, 1917, the Austro-Hungarian and German forces launched a major offensive against the Italian front at Caporetto, leading to a significant Italian retreat and a shift in the balance of power on the Italian front during World War I. source: britannica.com
  • 27 Oct 1917 Twelfth Battle of the Isonzo (Battle of Caporetto): The Twelfth Battle of the Isonzo, also known as the Battle of Caporetto, began on October 27, 1917. It was a major Austro-Hungarian and German offensive against Italian forces, resulting in a significant Italian retreat and a shift in the balance of power on the Italian front during World War I. source: britannica.com
  • 28 Oct 1917 Battle of Penang: German Naval Engagement in Malacca Strait: On October 28, 1917, the German light cruiser SMS Emden engaged the Russian cruiser Zhemchug and the French destroyer Mousquet in the Malacca Strait near Penang, Malaysia. The engagement resulted in the sinking of the Russian cruiser and the French destroyer. source: britannica.com
  • 29 Oct 1917 Australian Troops Crossing Flooded Battlefield at Passchendaele: On October 29, 1917, Australian troops participated in the Second Battle of Passchendaele, crossing a flooded battlefield to advance against German positions. The battle was part of the larger Third Battle of Ypres. source: britannica.com
  • 30 Oct 1917 Balfour Declaration approved: The Balfour Declaration, a statement by the British government expressing support for a 'national home for the Jewish people' in Palestine, was officially approved on October 30, 1917. This declaration had significant implications for the future of the region and international relations. source: britannica.com
  • 31 Oct 1917 Battle of Beersheba: historic cavalry charge: On October 31, 1917, the Battle of Beersheba took place, marked by a historic cavalry charge by the Australian Light Horse. This battle was a pivotal moment in the Sinai and Palestine Campaign during World War I, leading to the capture of Beersheba. source: britannica.com