Major Events of June 1915: 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 June 1915 and discover how they influenced the world both then and now.

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Major Events of June 1915: Key Historical Moments from the Month


  • 02 Jun 1915 Martial law declared in Ceylon during Sinhalese-Muslim riots: On June 2, 1915, British authorities declared martial law in the Western and Sabaragamuwa Provinces of Ceylon (now Sri Lanka) in response to escalating ethnic violence between Sinhalese Buddhists and Ceylon Moors. The unrest began in Kandy on May 28 and spread to other regions, leading to widespread looting, assaults, and property damage. Martial law was extended to additional provinces in the following days and remained in effect until August 30, 1915. source: en.wikipedia.org
  • 04 Jun 1915 Third Battle of Krithia during Gallipoli Campaign: The Third Battle of Krithia took place on June 4, 1915, during the Gallipoli Campaign. Allied forces launched an attack against Ottoman defenses at Krithia, aiming to advance their position. The assault was repelled, resulting in significant casualties on both sides and marking the end of the possibility for a decisive breakthrough. source: en.wikipedia.org
  • 08 Jun 1915 Battle of Hébuterne during World War I: The Battle of Hébuterne occurred from June 7 to 13, 1915, as part of the Second Battle of Artois on the Western Front. The French Second Army, led by General Noël de Castelnau, attacked German positions near the village of Hébuterne in Picardy, France. The battle resulted in significant casualties on both sides, with the French suffering approximately 10,351 casualties, including 1,760 killed or missing and 8,590 wounded. The Germans had around 1,200 killed and 651–1,016 prisoners of war. The battle concluded without a decisive outcome, with both sides holding their positions. source: en.wikipedia.org
  • 09 Jun 1915 William Jennings Bryan Resigns as Secretary of State: On June 9, 1915, U.S. Secretary of State William Jennings Bryan resigned due to disagreements with President Woodrow Wilson over the handling of the crisis following the sinking of the British passenger liner Lusitania by a German submarine. Bryan's resignation was a response to Wilson's firm stance against Germany, which he feared could lead the United States into World War I. source: history.com
  • 10 Jun 1915 Girl Scouts Founded in the United States: On June 10, 1915, the Girl Scouts of the United States of America was founded by Juliette Gordon Low in Savannah, Georgia. The organization aimed to empower young girls by providing programs that promote leadership, community service, and outdoor skills. The Girl Scouts have since become one of the largest and most influential organizations for girls in the world. source: en.wikipedia.org
  • 11 Jun 1915 Second Battle of Artois during World War I: The Second Battle of Artois took place from May 9 to June 18, 1915, on the Western Front during World War I. The French Second Army, under General Noël de Castelnau, conducted attacks against German positions in the Artois region of northern France. The battle aimed to relieve pressure on the French Tenth Army and to hinder German movements. Despite initial successes, the battle concluded without a decisive breakthrough, with both sides suffering significant casualties. source: en.wikipedia.org
  • 12 Jun 1915 David Rockefeller Birth: David Rockefeller, the youngest of six children born to John D. Rockefeller Jr. and Abigail Aldrich, was born on June 12, 1915, in New York City. He later became a prominent banker and philanthropist, serving as chairman and chief executive of Chase Manhattan Corporation. source: rockefellercenter.com
  • 14 Jun 1915 Second Battle of Artois: French Offensive in World War I: On June 14, 1915, during the Second Battle of Artois, French forces launched an offensive against German positions. Despite initial advances, the French encountered strong German defenses, including newly constructed barbed wire, which hindered their progress. source: en.wikipedia.org
  • 15 Jun 1915 First $50 gold pieces minted for Panama Pacific Exposition: The first $50 gold pieces were minted in the United States to commemorate the Panama-Pacific International Exposition held in San Francisco. This event marked a significant moment in numismatic history, celebrating the completion of the Panama Canal and showcasing American ingenuity. source: usmint.gov
  • 16 Jun 1915 Second Battle of Artois during World War I: The Second Battle of Artois was fought between French and German forces during World War I. It was part of a series of offensives aimed at breaking the stalemate on the Western Front, resulting in significant casualties on both sides. source: britannica.com
  • 17 Jun 1915 League to Enforce Peace established: The League to Enforce Peace was established in 1915 by a group of American leaders advocating for a new international organization to prevent future wars. This initiative laid the groundwork for later international cooperation efforts, including the League of Nations. source: archives.gov
  • 18 Jun 1915 French offensive at Western Front: On June 18, 1915, French forces launched a significant offensive on the Western Front, aiming to break through German lines. This offensive was part of the ongoing struggle for control in World War I, resulting in heavy fighting and casualties. source: britannica.com
  • 20 Jun 1915 German offensive in Argonne Forest during World War I: The German offensive in the Argonne Forest began on June 20, 1915, as part of their strategy to regain lost ground on the Western Front. This battle was characterized by intense trench warfare and significant casualties. source: britannica.com
  • 27 Jun 1915 Dutch Social Democratic Workers' Party Protests Conscription: On June 27, 1915, the Dutch Social Democratic Workers' Party (SDAP) organized a significant demonstration in Amsterdam against military conscription. This event highlighted the party's opposition to the war and its commitment to workers' rights. source: giftpals.com
  • 29 Jun 1915 Engineer's Day celebrated in Ecuador: Ecuador observes Engineer's Day on June 29 each year, honoring the contributions of engineers to the country's development. The date commemorates the establishment of the first civil engineering degree at the University of Buenos Aires in 1855, which influenced engineering education in Ecuador. source: en.wikipedia.org