World War I: Bulgaria Joins the Central Powers, October 14, 1915

At Treasure Island on the Delaware River in the United States, the First Order of the Arrow ceremony takes place and the Order of the Arrow is founded to honor American Boy Scouts who best exemplify the Scout Oath and Law. Date: July 16, 1915 Read more on Wikipedia → 📅 Other events on July…

World War I: Entente forces land in Thessaloniki, to open the Macedonian front against the Central Powers. Date: October 6, 1915 Read more on Wikipedia → 📅 Other events on October 6 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915World War I: Second Battle of Champagne Begins,…

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 1915House Rejects Women’s Suffrage Amendment January 12,…

The Rocky Mountain National Park is established by an act of the U.S. Congress. Date: January 26, 1915 Read more on Wikipedia → 📅 Other events on January 26 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915French Rescue 4,000 Armenian Genocide Survivors at Musa Dagh, September 12,…

RFC Captain Lanoe Hawker becomes the first British pursuit aviator to earn the Victoria Cross. Date: July 25, 1915 Read more on Wikipedia → 📅 Other events on July 25 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Armenian Genocide Begins: Arrest of 250 Intellectuals in Istanbul, April…

World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915. Date: August 4, 1915 Read more on Wikipedia → 📅 Other events on August 4 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Albert Einstein Presents General Relativity Field…