Major Events of August 1921: 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 August 1921 and discover how they influenced the world both then and now.

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Major Events of August 1921: Key Historical Moments from the Month


  • 01 Aug 1921 Spanish Political Unrest and Military Mutiny: Riots erupted in Spain, with troops mutinying against the government of King Alfonso XIII following a devastating military defeat by Moroccan tribesmen in Melilla. This event highlighted the growing political tensions and military dissatisfaction in early 20th-century Spain.
  • 02 Aug 1921 Chicago jury brings in not guilty verdict against the Black Sox
  • 03 Aug 1921 Black Sox Scandal: Permanent Baseball Ban: Major League Baseball Commissioner Kenesaw Mountain Landis officially confirmed the permanent ban of the eight Chicago Black Sox players, despite their earlier acquittal by a Chicago court. This decisive action was a landmark moment in baseball's efforts to maintain the integrity of the sport and combat match-fixing.
  • 04 Aug 1921 Irish Republican Parliament Convenes in Dublin: On August 16, 1921, Éamon de Valera summoned the Dáil Éireann (Irish Republican parliament) to meet in Dublin. Following complex negotiations with the United Kingdom, the meeting represented a significant milestone in Ireland's path to self-governance, ultimately securing recognition of the Irish Free State as a self-governing entity rather than a mere province of Southern Ireland.
  • 05 Aug 1921 First Radio Baseball Broadcast: Harold Arlin, a Westinghouse Electric & Manufacturing Company employee, made history by calling the first live baseball game play-by-play broadcast. The Pittsburgh Pirates defeated the Philadelphia Phillies 8-5 at Forbes Field, marking a significant milestone in sports media and broadcasting technology.
  • 06 Aug 1921 Soviet Union Begins Release of American Prisoners: The Soviet Union initiated the release of American prisoners, with the first group of six Americans being transferred to the American Relief Administration in Reval, Estonia, marking a diplomatic breakthrough.
  • 07 Aug 1921 Sinn Féin Members Released from British Prisons: In a significant diplomatic development, the United Kingdom and Irish Republicans reached an agreement resulting in the release of all Sinn Féin political prisoners. This event marked a potential de-escalation of tensions during the Irish War of Independence and represented an important step in Irish-British relations.
  • 08 Aug 1921 Washington Disarmament Conference Invitation Accepted by Italy and China: In a significant diplomatic development, Italy and China formally accepted U.S. President Warren G. Harding's invitation to participate in the Washington Disarmament Conference, scheduled to commence on November 11, 1921. This conference aimed to reduce naval armaments and stabilize tensions in the Pacific region following the aftermath of World War I. The acceptance by these two nations represented an important step towards international cooperation and potential reduction of military tensions during the interwar period.
  • 09 Aug 1921 Monte Arruit Massacre during Rif War: During the Rif War in Morocco, over 2,000 Spanish Army soldiers were brutally killed after surrendering the Monte Arruit garrison near Al Aaroui. This tragic event was part of the larger conflict between Spanish colonial forces and Moroccan Berber rebels led by Abd el-Krim, highlighting the extreme brutality of colonial warfare in the early 20th century.
  • 10 Aug 1921 Franklin Roosevelt Contracts Polio: Franklin D. Roosevelt was diagnosed with polio while vacationing at his family's summer home on Campobello Island, a pivotal moment that would significantly impact his personal life and future political career. This diagnosis occurred when Roosevelt was 39 years old and would ultimately shape his resilience and leadership approach.
  • 11 Aug 1921 Franklin D. Roosevelt Diagnosed with Polio: On August 11, 1921, Franklin D. Roosevelt was struck by a devastating paralytic illness while vacationing on Campobello Island, New Brunswick, Canada. By August 25, he was diagnosed with polio at the age of 39, which would permanently disable him. This life-altering event would profoundly shape his personal resilience and political career, ultimately not hindering his path to becoming President of the United States.
  • 12 Aug 1921 Soviet Invasion of Democratic Georgia: In a significant geopolitical event during the Russian Civil War, the Red Army launched a full-scale military invasion of the Democratic Republic of Georgia. This invasion marked a critical moment in the struggle between the newly established Bolshevik regime and independent Caucasian states seeking sovereignty after the collapse of the Russian Empire. The Soviet forces, under the command of the Bolshevik leadership, sought to reintegrate Georgia into the emerging Soviet sphere of influence, effectively crushing the young democratic republic's hopes for independent statehood.
  • 13 Aug 1921 Anglo-Irish Diplomatic Correspondence Released: On August 13, 1921, British Prime Minister David Lloyd George publicly released the official correspondence between himself and Éamon de Valera, the President of Sinn Féin. This release was a significant moment in the ongoing Irish independence negotiations, providing transparency into the diplomatic communications between the British government and Irish republican leadership during a critical period of the Irish War of Independence.
  • 14 Aug 1921 Establishment of Tuvan People's Republic: On August 14, 1921, the Tuvan People's Republic (initially known as Tannu Uriankhai) was established as an independent nation, with significant political support from Soviet Russia. This small Central Asian state emerged during a period of significant geopolitical transformation following the Russian Revolution, representing a unique example of Soviet-influenced state formation in the early 20th century.
  • 15 Aug 1921 International Committee for Russian Relief Founded: On August 15, 1921, the International Committee for Russian Relief (ICRR) was established in Geneva by the International Red Cross. The organization was specifically created to provide humanitarian aid and food assistance to victims of the severe famine devastating Russia at that time. This humanitarian effort was a critical response to the widespread starvation and economic collapse following the Russian Civil War and the early years of Soviet rule.
  • 16 Aug 1921 First Meeting of Irish Republican Parliament: On August 16, 1921, Éamon de Valera convened the first meeting of Dáil Éireann, the Irish Republican parliament, in Dublin. This historic session followed crucial negotiations with the United Kingdom that resulted in recognition of the Irish Free State as a self-governing entity, marking a pivotal moment in Ireland's journey towards independence.
  • 17 Aug 1921 Permanent Court of International Justice Treaty Takes Effect: The international treaty establishing the Permanent Court of International Justice officially came into force on this date, with Spain becoming the 24th nation to ratify the agreement. This marked a significant milestone in international legal cooperation and diplomacy, creating a formal mechanism for resolving disputes between nations.
  • 18 Aug 1921 British Mandate Palestine: Jewish State Proposal Deferred: During a critical diplomatic meeting on August 18, 1921, British colonial administrators deliberated on the potential establishment of a Jewish homeland in Palestine. Despite significant discussions, no definitive resolution was reached regarding the proposed Jewish state. The ongoing negotiations reflected the complex geopolitical tensions surrounding territorial claims and ethnic aspirations in the region during the early 20th century.
  • 19 Aug 1921 United Kingdom Railways Act of 1921: The British government enacted the Railways Act 1921, a significant piece of legislation that restructured the nation's railway system by consolidating numerous private railway companies into four major regional groups, fundamentally transforming the country's transportation infrastructure.
  • 20 Aug 1921 Soviet-US Diplomatic Breakthrough: Maxim Litvinov, the Foreign Minister of the Soviet Union, signed a groundbreaking diplomatic agreement with the United States, marking a significant moment of potential rapprochement between the two nations in the aftermath of the Russian Revolution.
  • 21 Aug 1921 Arrest of Serial Killer Karl Grossmann: On August 21, 1921, Berlin police arrested notorious serial killer Karl Grossmann at his apartment after receiving a call from neighbors. Upon investigation, authorities discovered the corpse of his latest victim, bringing an end to his murderous spree and ensuring public safety.
  • 22 Aug 1921 Establishment of the Sultanate of Nejd: The Sultanate of Nejd was established under the leadership of Abdul Aziz ibn Saud, a pivotal moment in the formation of modern Saudi Arabia. This sultanate would later conquer and annex the neighboring Kingdom of Hejaz, ultimately leading to the creation of the Kingdom of Saudi Arabia in 1932.
  • 23 Aug 1921 Anglo-Irish Truce: On August 23, 1921, the British government declared a truce with the Irish Nationalist movement Sinn Féin, a pivotal moment in the Irish War of Independence. This truce represented a significant step towards eventual negotiations and would ultimately lead to the Anglo-Irish Treaty, marking a crucial phase in Ireland's path to independence.
  • 24 Aug 1921 Battle of Sakaray Valley: The Battle of Sakaray Valley begins between Turkish and Greek forces during the Greco-Turkish War (1919-1922), a significant conflict that would ultimately reshape the geopolitical landscape of the Near East and lead to the establishment of the modern Turkish state.
  • 25 Aug 1921 United States Signs Peace Treaty with Germany: The United States officially signs a peace treaty with Germany, formally concluding diplomatic tensions following World War I and marking a significant moment in post-war international relations.
  • 26 Aug 1921 Assassination of Matthias Erzberger: Matthias Erzberger, a prominent German politician and former Finance Minister, was assassinated by right-wing extremists while vacationing in Bad Griesbach, located in Germany's Black Forest region. Erzberger was a key figure in signing the armistice that ended World War I and was targeted by nationalist groups who viewed him as a traitor for his role in accepting the harsh terms of the Treaty of Versailles.
  • 27 Aug 1921 British Install First King of Iraq: The British colonial authorities formally established the Kingdom of Iraq by installing Faisal I, son of Sharif Hussein bin Ali (who led the Arab Revolt against the Ottoman Empire in 1916), as the country's first monarch. This marked a significant moment in the post-World War I reorganization of the Middle East under British influence.
  • 28 Aug 1921 Battle of Blair Mountain: Miners' Uprising in West Virginia: Armed coal miners from the Kanawha Valley and southern West Virginia counties marched to Logan and Mingo counties to protest the imprisonment and mistreatment of union miners. This confrontation escalated into the Battle of Blair Mountain, a significant labor conflict that resulted in multiple deaths and required federal intervention, symbolizing the intense struggle for workers' rights during the early 20th century.
  • 29 Aug 1921 Loew's State Theatre Opens in New York City: On August 29, 1921, Loew's State Theatre, a grand movie palace with 3,600 seats, was inaugurated in the heart of New York City. The theater was the visionary project of Marcus Loew, a prominent motion picture pioneer and founder of MGM Studios. This landmark venue represented a significant milestone in early 20th-century entertainment, showcasing the growing cultural and commercial importance of cinema during the golden age of Hollywood.
  • 31 Aug 1921 Royal Australian Air Force Established: On August 31, 1921, the Australian Air Force was officially granted the prestigious 'Royal' prefix, becoming the second Royal air arm to be formed within the British Empire. This milestone marked a significant moment in Australia's military aviation history, signaling the growing importance and sophistication of the nation's aerial capabilities during the early 20th century.