Major Events of September 1931: 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 September 1931 and discover how they influenced the world both then and now.

Major Events of September 1931: Key Historical Moments from the Month
- 01 Sep 1931 Lou Gehrig hits third grand slam in four days: On September 1, 1931, Lou Gehrig hit his third grand slam in four days, leading the New York Yankees to a 5-1 victory over the Boston Red Sox. This home run, his 40th of the season, came in the third inning off pitcher Ed Morris. source: thisdayinbaseball.com
- 07 Sep 1931 Chilean naval mutiny ends with surrender of fleet: On September 7, 1931, the Chilean naval mutiny concluded as the rebellious sailors surrendered their fleet to the government. The mutiny had begun on August 31, 1931, when sailors seized control of several ships, including the battleship Almirante Latorre, in protest against salary cuts amid the Great Depression. The government's response included military action, such as an aerial bombardment on September 6, which demoralized the mutineers and led to their surrender the following day. source: oregonnews.uoregon.edu
- 08 Sep 1931 Omar Mukhtar, Libyan revolutionary, executed: On September 8, 1931, Omar Mukhtar, a prominent Libyan revolutionary leader, was executed by Italian forces. Mukhtar had led a prolonged resistance against Italian colonization in Libya, earning him the nickname 'The Lion of the Desert.' His execution marked a significant moment in the history of Libyan resistance. source: en.wikipedia.org
- 09 Sep 1931 Murder of Salvatore Maranzano: On September 9, 1931, Salvatore Maranzano, a prominent figure in organized crime, was murdered. His death led to significant changes in the structure of organized crime in the United States, including the formation of the five major families of the American Mafia. source: en.wikipedia.org
- 10 Sep 1931 1931 Belize hurricane disaster: On September 10, 1931, a devastating hurricane struck British Honduras (now Belize), causing widespread destruction and resulting in at least 2,500 fatalities. The hurricane leveled St. John's College in Belize City, highlighting the region's vulnerability to such natural disasters. source: en.wikipedia.org
- 11 Sep 1931 Birth of Salvatore Maranzano, Mafia Boss: Salvatore Maranzano, an Italian-American mobster and early leader of the Cosa Nostra in New York City, was born on July 31, 1886, in Castellammare del Golfo, Sicily, Italy. He became a significant figure in organized crime during the Prohibition era. source: britannica.com
- 15 Sep 1931 Invergordon Mutiny in the British Royal Navy: Between September 15 and 16, 1931, approximately 1,000 sailors of the British Atlantic Fleet mutinied at Invergordon, Scotland, protesting proposed pay cuts amid the Great Depression. The unrest led to a panic on the London Stock Exchange and a run on the pound, prompting Britain to abandon the Gold Standard on September 21, 1931. source: en.wikipedia.org
- 16 Sep 1931 Mukden Incident: Japan's Invasion of Manchuria: On September 16, 1931, Japan staged the Mukden Incident, a false flag operation that served as a pretext for its invasion of Manchuria. This event marked a significant escalation in Japanese imperialism and set the stage for further conflicts in East Asia. source: en.wikipedia.org
- 17 Sep 1931 First Long-Playing Record Demonstration: On September 17, 1931, the first public demonstration of the long-playing (LP) record was held. This innovation revolutionized the music industry by allowing for longer playback times and improved sound quality. source: en.wikipedia.org
- 18 Sep 1931 Mukden Incident: Japan's False Flag Operation in Manchuria: On September 18, 1931, Japan staged the Mukden Incident, a false flag operation that served as a pretext for its invasion of Manchuria. This event marked a significant escalation in Japanese imperialism and set the stage for further conflicts in East Asia. source: en.wikipedia.org
- 19 Sep 1931 Japanese invasion of Mukden: On September 19, 1931, Japanese forces initiated the invasion of Mukden, marking the beginning of the Japanese invasion of Manchuria. This event led to the establishment of the puppet state of Manchukuo and significantly escalated tensions in East Asia. source: britannica.com
- 20 Sep 1931 Britain abandons gold standard: On September 20, 1931, Britain officially abandoned the gold standard, a significant economic policy shift during the Great Depression. This decision allowed the British government to devalue the pound and implement measures to combat economic downturn. source: britannica.com
- 23 Sep 1931 Soviet Union condemns Japanese invasion of Manchuria: On September 23, 1931, the Soviet Union officially condemned Japan's invasion of Manchuria, expressing concern over the escalating conflict in East Asia. This condemnation was part of the broader geopolitical tensions of the time, as the Soviet Union sought to assert its influence in the region. source: britannica.com
- 24 Sep 1931 US diplomatic intervention in Manchurian incident: On September 24, 1931, the United States began diplomatic efforts to intervene in the Manchurian Incident, seeking to mediate the conflict between Japan and China. This intervention was part of the US's broader strategy to maintain stability in East Asia and protect its interests in the region. source: britannica.com
- 25 Sep 1931 Gandhi's visit to Lancashire cotton mills: On September 25, 1931, Mahatma Gandhi visited the Lancashire cotton mills in England to discuss the impact of British policies on Indian cotton production. This visit was part of Gandhi's broader campaign for Indian independence and economic self-sufficiency. source: britannica.com
- 26 Sep 1931 Marriage of Claus von Stauffenberg: On September 26, 1931, Claus von Stauffenberg, a key figure in the German resistance against Hitler, married Nina von Stauffenberg. Their marriage would later play a significant role in his life as he became involved in plots against the Nazi regime. source: britannica.com
- 27 Sep 1931 Multiple countries abandon gold standard: On September 27, 1931, several countries, including the UK, abandoned the gold standard in response to the global economic crisis. This decision marked a significant shift in monetary policy and had lasting effects on international finance. source: britannica.com
- 28 Sep 1931 France-Germany trade commission established: On September 28, 1931, the trade commission established by France and Germany began its operations, focusing on enhancing bilateral trade relations. This initiative was crucial for economic recovery in the aftermath of World War I. source: britannica.com
- 29 Sep 1931 Estevan Riot in Saskatchewan: On September 29, 1931, a violent confrontation occurred in Estevan, Saskatchewan, when striking coal miners from Bienfait were met by the Royal Canadian Mounted Police (RCMP) while attempting to parade through the town. The RCMP opened fire on the miners, resulting in the deaths of four individuals and injuries to several others. The miners had been on strike since September 7, 1931, seeking improved wages and working conditions. source: en.wikipedia.org
- 30 Sep 1931 London Police Clash with Unemployed Workers: On September 30, 1931, unemployed workers in London clashed with police during a protest against the government's handling of the economic crisis. The demonstration turned violent, leading to several arrests and highlighting the growing social unrest due to high unemployment rates.