September 22 - Alain-Fournier, French writer (b. 1886)
December 16 - Ivan Zajc, Croatian composer (b. 1832)
December 24 - John Muir, British naturalist (b. 1838)
Events
January 5 - The Ford Motor Company announces an eight-hour workday and a minimum wage of $5 for a day's labor.
February 12 - In Washington, DC, the first stone of the Lincoln Memorial is put into place.
February 13 - Copyright: In New York City the ASCAP (for American Society of Composers, Authors and Publishers) is established to protect the copyrighted musical compositions of its members.
February 26 - HMHS Britannic, sister to the Titanic, is launched at Harland & Wolff, Belfast.
March 1 - The Republic of China joins the Universal Postal Union.
March 20 - In New Haven, Connecticut, the first international figure skating championship takes place.
April 20 - Forty-five men, women, and children die in the Ludlow Massacre during a Colorado coal-miner's strike.
April 27 - Honduras becomes a signatory to the Buenos Aires copyright treaty.
May 9 - J.T. Hearne becomes the first bowler to take 3000 first-class wickets.
May 15 - Bolivia becomes a signatory to the Buenos Aires copyright treaty.
May 16 - The first ever Lamar Hunt U.S. Open Cup final is played. Brooklyn Field Club defeats Brooklyn Celtic 2-1.
May 25 - The United Kingdom's House of Commons passes the Home Rule Act for devolution in Ireland.
May 29 - Ocean liner RMS Empress of Ireland sinks in the Gulf of St. Lawrence; 1,024 lives lost.
May 30 - The new and then largest Cunard ocean liner RMS Aquitania, 45,647 tons, sets sails on her maiden voyage from Liverpool, England to New York City.
June 23 - Mexican Revolution: Francisco Villa takes Zacatecas from Victoriano Huerta.
June 28 - Franz Ferdinand, Archduke of Austria and his wife Sophie are assassinated in Sarajevo by young Serbian nationalist Gavrilo Princip , the casus belli of World War I.
June 29 - Jina Guseva attempts to assassinate Grigori Rasputin at his home town in Siberia.
July 11 - Babe Ruth makes his debut in Major league baseball.
July 18 - The U.S. Congress forms the Aviation Section, U.S. Signal Corps, giving definite status to aircraft within the U.S. Army for the first time.
July 23 - Austria-Hungary issues an ultimatum to Serbia demanding Serbia to allow the Austrians to determine who assassinated Archduke Franz Ferdinand. Serbia rejects those demands and Austria declares war on July 28.
July 26 - Serbia and Bulgaria interrupt diplomatic relationship.
July 27 - Felix Manalo registers the Iglesia ni Cristo with the Filipino government.
July 28 - World War I: Austria-Hungary declares war on Serbia after Serbia rejects the conditions of an ultimatum sent by Austria on July 23 following the assassination of Archduke Francis Ferdinand.
August 1 - Germany declares war on Russia at the opening of World War I. The Swiss Army mobilises because of World War I
August 3 - World War I: Germany declares war against France.
August 4 - World War I: Germany invades Belgium. In response, the United Kingdom declares war on Germany. The United States declares its neutrality.
August 5 - In Cleveland, Ohio, the first electric traffic light is installed.
August 6 - World War I: First Battle of the Atlantic
August 6 - World War I: Serbia declares war on Germany; Austria declares war on Russia.
August 6 - Denis Patrick Dowd Jr. enlists in the French Foreign Legion, becoming the first American to fight in World War I.
August 15 - A male servant of American architect Frank Lloyd Wright sets fire to the living quarters of the architect's Wisconsin home, Taliesin, murders seven people and burns the living quarters to the ground.
August 15 - The Panama Canal opens to traffic with the transit of the cargo ship Ancon.
August 20 - World War I: German forces occupy Brussels.
August 22 - World War I: in Belgium, British and German troops clash for the first time in the war.
August 23 - World War I: Japan declares war on Germany and bombs Qingdao, China.
August 23 - World War I: the Battle of Mons; the British Army begins withdrawal.
August 24 - World War I: German troops capture Namur.
August 26 - World War I: Germany defeats Russia in the Battle of Tannenberg, a decisive engagement which results in the almost complete destruction of the Russian 2nd Army.
August 26 - World War I: the British Expeditionary Force briefly checks the German advance at Le Cateau.
August 26 - World War I: the German colony of Togoland is invaded by French and British forces, who take it after 5 days.
August 28 - World War I: the Royal Navy beats the German fleet in the Battle of Heligoland Bight.
August 28 - World War I: German troops conquer Namur.
August 31 - Ecuador becomes a signatory to the Buenos Aires copyright treaty.
September 1 - St. Petersburg, Russia changes its name to Petrograd.
September 1 - The last passenger pigeon, a female named Martha, dies in captivity in the Cincinnati Zoo.
September 3 - William, Prince of Albania leaves the country after just six months due to opposition to his rule.
September 5 - World War I: First Battle of the Marne begins. Northeast of Paris, the French attack and defeat German forces who are advancing on the capital.
September 8 - World War I: Private Thomas Highgate becomes the first British soldier to be executed for desertion during the war.
September 9 - World War I: The creation of the Canadian Automobile Machine Gun Brigade, the first fully mechanized unit in the British Army.
September 11 - Australia invades New Britain, defeating a German contingent there.
September 13 - World War I: South African troops open hostilities in German south-west Africa (Namibia) with an assault on the Ramansdrift police station.
September 13 - World War I: The Battle of Aisne begins between Germany and France.
September 17 - Andrew Fisher becomes Prime Minister of Australia for the third time.
September 18 - The Irish Home Rule Act becomes law, but is delayed until after World War I.
September 18 - World War I: South African troops land in German South West Africa.
September 26 - The United States Federal Trade Commission (FTC) is established by the Federal Trade Commission Act.
October 5 - World War I first aerial combat resulting in a kill.
November 1 - World War I: the first British Royal Navy defeat of the war with Germany, the Battle of Coronel, is fought off of the western coast of Chile, in the Pacific.
November 2 - Russia declares war on the Ottoman Empire.
November 7 - The first issue of The New Republic magazine is published.
November 7 - The German colony of Kiaochow Bay and its centre at Tsingtao are captured by Japanese forces.
November 16 - The Federal Reserve Bank of the United States officially opens.
November 28 - World War I: Following a war-induced closure in July, the New York Stock Exchange re-opens for bond trading.
December 5 - The Italian Parliament proclaims the neutrality of the country.
December 8 - World War I: Battle of the Falkland Islands
December 14 - Lisandro de la Torre and others found the Democratic Progressist Party (Partido Demócrata Progresista, PDP) at the Hotel Savoy, Buenos Aires.
December 15 - World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army.
December 15 - Gas explosion at Mitsubishi Hojyo coal mine, Ky¨±sh¨±, Japan, 687 killed. This accident is the worst coal mine disaster in Japanese history.
December 16 - World War I: German battleships under Franz Von Hipper bombard the English ports of Hartlepool and Scarborough.
December 23 - World War I: Australian and New Zealand troops arrive in Cairo, Egypt.
December 24 - World War I: The "Christmas truce" begins.
December 25 - World War I: Known as the Christmas truce, German and British troops on the Western Front temporarily cease fire.
