1915 events in history

Jan 12 The United States House of Representatives rejects a proposal to give women the right to vote
Jan 12 The Rocky Mountain National Park is formed by an act of U.S. Congress
Jan 13 An earthquake in Avezzano, Italy kills 29,800
Jan 18 Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia
Jan 19 Georges Claude patents the neon discharge tube for use in advertising
Jan 19 World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing more than 20, in the first major aerial bombardment of a civilian target
Jan 21 Kiwanis International is founded in Detroit, Michigan
Jan 22 Over 600 people are killed in Guadalajara, Mexico, when a train plunges off the tracks into a deep canyon
Jan 25 Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco
Jan 26 The Rocky Mountain National Park is established by an act of the U.S. Congress
Jan 28 An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces
Jan 31 World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia
Feb 8 D.W. Griffith's controversial film The Birth of a Nation premieres in Los Angeles
Feb 19 World War I: The first naval attack on the Dardanelles begins when a strong Anglo-French task force bombards Ottoman artillery along the coast of Gallipoli
Feb 22 World War I: Germany institutes unrestricted submarine warfare
Mar 3 NACA, the predecessor of NASA, is founded
Mar 14 World War I: Cornered off the coast of Chile by the Royal Navy after fleeing the Battle of the Falkland Islands, the German light cruiser SMS Dresden is abandoned and scuttled by her crew
Mar 18 World War I: During the Battle of Gallipoli, three battleships are sunk during a failed British and French naval attack on the Dardanelles
Mar 26 Ice Hockey: The Vancouver Millionaires sweep the Ottawa Senators three-games-to-none to win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association
Mar 27 Typhoid Mary, the first healthy carrier of disease ever identified in the United States, is put in quarantine, where she would remain for the rest of her life
Apr 18 French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I
Apr 22 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
Apr 24 The arrest of 250 Armenian intellectuals and community leaders in Istanbul marks the beginning of the Armenian Genocide
Apr 25 World War I: The Battle of Gallipoli begins—The invasion of the Turkish Gallipoli Peninsula by Australian, British, French and New Zealand troops begins with landings at Anzac Cove and Cape Helles
May 1 The RMS Lusitania departs from New York City on her two hundred and second, and final, crossing of the North Atlantic. Six days later, the ship is torpedoed off the coast of Ireland with the loss of 1,198 lives
May 3 The poem In Flanders Fields is written by Lieutenant Colonel John McCrae
May 7 Japanese 21 Demands Ultimatum to China (Commemorated as National Day of Humiliation)
May 7 World War I: German submarine U-20 sinks RMS Lusitania, killing 1,198 people including 128 Americans. Public reaction to the sinking turns many formerly pro-Germans in the United States against the German Empire
May 9 World War I: Second Battle of Artois between German and French forces
May 17 The last British Liberal Party government (led by Herbert Henry Asquith) falls
May 22 Lassen Peak erupts with a powerful force, and is the only mountain other than Mount St. Helens to erupt in the contiguous US during the 20th century
May 22 Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246; the accident is found to be the result of non-standard operating practices during a shift change at a busy junction
May 23 World War I: Italy joins the Allies after they declare war on Austria-Hungary
May 24 World War I: Italy declares war on Austria-Hungary
Jun 5 Denmark amends its constitution to allow women's suffrage
Jun 9 William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMS Lusitania
Jun 16 Foundation of the British Women's Institute
Jun 21 The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down an Oklahoma law denying the right to vote to some citizens
Jul 1 Leutnant Kurt Wintgens of the then-named German Fliegertruppe air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker
Jul 7 An International Railway trolley with an extreme overload of 157 passengers crashes near Queenston, Ontario, killing 15
Jul 7 Militia officer Henry Pedris executed by firing squad at Colombo, Ceylon - an act widely regarded as a miscarriage of justice by the British colonial authorities
Jul 7 World War I: end of First Battle of the Isonzo
Jul 16 Henry James becomes a British citizen, to highlight his commitment to Britain during the first World War
Jul 16 First Order of the Arrow ceremony takes place and the Order of the Arrow is founded
Jul 24 The passenger ship S.S. Eastland capsizes while tied to a dock in the Chicago River. A total of 844 passengers and crew are killed in the largest loss of life disaster from a single shipwreck on the Great Lakes
Jul 25 RFC Captain Lanoe Hawker becomes the first British military aviator to earn the Victoria Cross, for defeating three German two-seat observation aircraft in one day, over the Western Front
Aug 4 World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915
Aug 6 World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay
Aug 15 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
Aug 17 A Category 4 hurricane hits Galveston, Texas with winds at 135 miles per hour (217 km/h)