U-Boat Campaign: Germany Begins Unrestricted Submarine Warfare February 18, 1915

The May 14 Revolt takes place in Lisbon, Portugal. Date: May 14, 1915 Read more on Wikipedia → 📅 Other events on May 14 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915Typhoid Mary Quarantined Again as Healthy Carrier, March 27, 1915HMS Princess Irene Explodes and Sinks Off…

Georges Claude patents the neon discharge tube for use in advertising. Date: January 19, 1915 Read more on Wikipedia → 📅 Other events on January 19 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915House Rejects Women’s Suffrage Amendment January 12, 1915Quintinshill Rail Disaster: 227 Killed in Scotland,…

Denmark amends its constitution to allow women's suffrage. Date: June 5, 1915 Read more on Wikipedia → 📅 Other events on June 5 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915World War I: First Aircraft Shot Down by Ground Fire, September 30, 1915Typhoid Mary Quarantined Again as…

An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces. Date: January 28, 1915 Read more on Wikipedia → 📅 Other events on January 28 📅 Events on this day in 1915 📅 On This Day (Today) More events from 1915World War I Gallipoli…

World War I: The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres. Date: April 22, 1915 Read more on Wikipedia → 📅 Other events on April 22 📅 Events on this day in 1915 📅 On This Day (Today)…