World War I: Last Australian Troops Evacuated from Gallipoli, December 20, 1915

World War I: Italy secretly signs the Treaty of London pledging to join the Allied Powers. Date: April 26, 1915 Read more on Wikipedia → 📅 Other events on April 26 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Rocky Mountain National Park Established by U.S. Congress -…

World War I: During the Battle of Gallipoli, three battleships are sunk during a failed British and French naval attack on the Dardanelles. Date: March 18, 1915 Read more on Wikipedia → 📅 Other events on March 18 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Vancouver Millionaires…

World War I: Combined Austro-Hungarian and German Central Powers, reinforced by the recently joined Bulgaria launched a new offensive against Serbia under command of August von Mackensen. Date: October 6, 1915 Read more on Wikipedia → 📅 Other events on October 6 📅 Events on this day in 1915 📅 On This Day (Today) More…

U-boat Campaign: The Imperial German Navy institutes unrestricted submarine warfare in the waters around Great Britain and Ireland. Date: February 18, 1915 Read more on Wikipedia → 📅 Other events on February 18 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Imperial Trans-Antarctic Expedition: SY Aurora Breaks Free…

A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production. Date: August 15, 1915 Read more on Wikipedia → 📅 Other events on August 15 📅…