Editing 1915 (section)

== Events ==
Below, the events of [[World War I]] have the "WWI" prefix.
[[File:HMS Formidable 1898.jpg|thumb|120px|right| [[January 1]]: [[HMS Formidable (1898)|HMS ''Formidable'']], sunk by a German [[U-boat]].]]
=== January ===
{{main|January 1915}}
*[[January]] – British physicist Sir [[Joseph Larmor]] publishes his observations on "The Influence of Local Atmospheric Cooling on Astronomical Refraction".<ref>''Monthly Notices of the Royal Astronomical Society'' '''75''':205–10.</ref>
*[[January 1]]
** WWI: British [[Royal Navy]] battleship [[HMS Formidable (1898)|HMS ''Formidable'']] is sunk off [[Lyme Regis]], [[Dorset]], England, by an [[Imperial German Navy]] [[U-boat]], with the loss of 547 crew.
**WWI: [[Battle of Broken Hill]]: A train ambush near [[Broken Hill]], Australia, is carried out by two men (claiming to be in support of the [[Ottoman Empire]]) who are killed, together with four civilians.
* [[January 5]] – [[Joseph E. Carberry]] sets an altitude record of {{convert|11,690|ft|m}}, carrying Capt. Benjamin Delahauf Foulois as a passenger, in a fixed-wing aircraft.
* [[January 12]]
** The [[United States House of Representatives]] rejects a proposal to give women the right to vote.
** ''[[A Fool There Was (1915 film)|A Fool There Was]]'' premières in the United States, starring [[Theda Bara]] as a ''[[femme fatale]]''; she quickly becomes one of early cinema's most sensational stars.
* [[January 17]] – WWI: Caucasus Campaign – [[Battle of Sarikamish]]: Russia defeats Ottoman Turkey.
* [[January 18]] – [[Twenty-One Demands]] from [[Empire of Japan|Japan]] to [[Republic of China (1912–49)|China]] are made.
* [[January 19]]
** [[Georges Claude]] patents the [[neon discharge tube]] for use in advertising.
** WWI: German [[Zeppelin]]s bomb the coastal towns of [[Great Yarmouth]] and [[King's Lynn]] in England for the first time, killing more than 20.
* [[January 21]] – [[Kiwanis]] is founded in [[Detroit]], Michigan, as The Supreme Lodge Benevolent Order Brothers.
* [[January 23]] – [[Chilembwe uprising]]: [[Baptist]] minister [[John Chilembwe]] initiates an ultimately unsuccessful uprising against British colonial rule in [[Nyasaland]] (modern-day [[Malawi]]).
* [[January 24]] – WWI: [[Battle of Dogger Bank (1915)|Battle of Dogger Bank]] – The [[British Grand Fleet]] defeats the [[Imperial German Navy|German High Seas Fleet]], sinking the armoured cruiser {{SMS|Blücher}}.<ref name="Pocket On This Day">{{cite book|title=Penguin Pocket On This Day|publisher=Penguin Reference Library|isbn=0-14-102715-0|year=2006}}</ref>
* [[January 25]] – The first United States coast-to-coast [[Long-distance calling|long-distance telephone call]] is facilitated by a newly invented vacuum tube amplifier, ceremonially inaugurated by [[Alexander Graham Bell]] in New York City and his former assistant [[Thomas A. Watson]], in San Francisco, California.
* [[January 26]]
** WWI: The [[Ottoman Army]] begins the [[Raid on the Suez Canal]].
** The [[Rocky Mountain National Park]] is established by an act of the [[United States Congress]].
* [[January 27]] – WWI: French military casualties begin arriving at the [[Hôpital Temporaire d'Arc-en-Barrois]], established earlier in the month by British volunteers.
* [[January 28]] – An act of the [[United States Congress]] designates the [[United States Coast Guard]], began in [[1790]], as a military branch.
* [[January 31]] – WWI: [[Battle of Bolimów]] – [[German Empire|Germany]]'s first large-scale use of [[Chemical weapons in World War I|poison gas]] as a weapon occurs, when 18,000 [[artillery]] shells containing liquid [[xylyl bromide]] [[tear gas]] are fired on the [[Imperial Russian Army]], on the [[Rawka River]] west of [[Warsaw]]; however, freezing temperatures prevent it being effective.<ref>{{cite web|last=Heller|first=Charles E.|url=http://usacac.army.mil/cac2/cgsc/carl/resources/csi/Heller/HELLER.asp|title=Chemical Warfare in World War I: The American Experience, 1917–1918|publisher=Combat Studies Institute|series=Leaveanworth Papers, 10|access-date=August 24, 2012|date=September 1984|archive-date=April 22, 2012|archive-url=https://web.archive.org/web/20120422083826/http://usacac.army.mil/cac2/cgsc/carl/resources/csi/Heller/HELLER.asp|url-status=dead}}</ref>
[[File:Seal of the U.S. Coast Guard.svg|thumb|120px|right|[[January 28]]: [[United States Coast Guard]] military branch]]

=== February ===
{{main|February 1915}}
* [[February]] – While working as a [[cook (profession)|cook]] at New York's [[Sloane Hospital for Women]] under an assumed name, "[[Typhoid Mary]]" (an [[asymptomatic carrier]] of [[typhoid fever]]) infects 25 people, and is placed in [[quarantine]] for life on [[March 27]].
* [[February 1]] – [[William Fox (producer)|William Fox]] creates the [[Fox Film Corporation]].
* [[February 4]] – The [[Maritz Rebellion]] of disaffected [[Boer]]s against the government of the [[Union of South Africa]] ends with the surrender of the remaining rebels.
* [[February 8]] – The controversial film ''[[The Birth of a Nation]]'', directed by [[D. W. Griffith]], premieres in Los Angeles. It will be the [[List of highest-grossing films#Timeline of highest-grossing films|highest-grossing film]] for around 25 years.
* [[February 18]] – WWI: Germany regards the waters around the British Isles to be a war zone from this date, as part of its [[U-boat Campaign]].
* [[February 20]] – In San Francisco, the [[Panama–Pacific International Exposition]] is opened.
* [[February 25]] – [[Armenian genocide]]: The Ottoman Empire transfers Armenians from its armed forces to unarmed [[Ottoman labour battalions]].

=== March ===
{{main|March 1915}}
* [[March]] – The [[1915 Palestine locust infestation]] breaks out in [[Palestine (region)|Palestine]]; it continues until [[October]].
* [[March 2]] – [[Armenian genocide]]: Earliest recorded deportations.<ref>"The Deportation of the Armenians of Dörtyol", Ciphered telegram from the [[Ministry of the Interior (Ottoman Empire)]] to the Province of Adana, BOA. DH. ŞFR, nr. 50/141.</ref>
* [[March 10]]–[[March 13|13]] – WWI: [[Battle of Neuve Chapelle]] – In the first deliberately planned British offensive of the war, British Indian troops overrun German positions in France, but are unable to sustain the advance.
* [[March 11]] – WWI: British [[armed merchantman]] {{HMS|Bayano|1913}} is sunk in the [[North Channel (Great Britain and Ireland)|North Channel]] off the coast of [[Scotland]] by [[Imperial German Navy]] [[U-boat]] ''[[SM U-27 (Germany)|SM U-27]]''. Around 200 crew are lost, a number of bodies being washed up on the [[Isle of Man]], with only 26 saved.<ref>{{cite web|last=Johnston|first=Willie|date=March 12, 2015|url=https://www.bbc.com/news/uk-scotland-south-scotland-31821949|title=Centenary of HMS Bayano disaster off the Galloway coast|work=[[BBC News]]|access-date=March 24, 2015|archive-date=March 13, 2015|archive-url=https://web.archive.org/web/20150313044311/http://www.bbc.com/news/uk-scotland-south-scotland-31821949|url-status=live}}</ref>
* [[March 14]] – WWI:
** [[Battle of Más a Tierra]]: Off the coast of [[Chile]], the British [[Royal Navy]] forces the Imperial German Navy [[light cruiser]] [[SMS Dresden (1907)|SMS ''Dresden'']] (last survivor of the German East Asia Squadron) to scuttle.
** [[Constantinople Agreement]]: [[United Kingdom of Great Britain and Ireland|Britain]], [[French Third Republic|France]] and the [[Russian Empire]] agree to give [[Constantinople]] (Istanbul) and the [[Bosphorus]] to Russia in case of victory (the treaty is later nullified by the [[Bolshevik Revolution]]).
* [[March 18]] – WWI:
** [[Gallipoli campaign]]: A Franco-British naval attack on the [[Dardanelles]] fails.
** British Royal Navy battleship {{HMS|Dreadnought|1906}} sinks [[SM U-29 (Germany)|German submarine ''U-29'']] with all hands in the [[Pentland Firth]] off the coast of Scotland by ramming her, the only time this tactic is known to have been successfully used by a battleship.
* [[March 19]] – [[Pluto]] is photographed for the first time, but is not recognised for what it is.
* [[March 26]] – The [[Vancouver Millionaires]] win the [[1915 Stanley Cup Finals|Stanley Cup]] in [[ice hockey]] over the [[Ottawa Senators (original)|Ottawa Senators]], 3 games to 0.
* [[March 28]] – The first [[Roman Catholic liturgy]] at the newly consecrated [[Cathedral of Saint Paul (Minnesota)|Cathedral of Saint Paul, Minnesota]], is celebrated by [[Archbishop]] [[John Ireland (bishop)|John Ireland]].
[[File:SMS Dresden German Cruiser LOC 16727.jpg|thumb|250px|right| [[March 14]]: WWI: [[SMS Dresden (1907)|SMS ''Dresden'']], forced to scuttle by the [[Royal Navy]].]]

=== April ===
{{main|April 1915}}
* [[April 5]] – Boxer [[Jess Willard]], the latest "Great White Hope", defeats [[Jack Johnson (boxer)|Jack Johnson]] with a 26th-round knockout in sweltering heat, at Havana, Cuba. Willard becomes very popular among white Americans, for "bringing back the championship to the white race".
* [[April 11]] – [[Charlie Chaplin]]'s film ''[[The Tramp (film)|The Tramp]]'' is released in the United States.
* [[April 21]] – On the orders of [[Talat Pasha]], Haydar Bey organized an [[Haydar Bey's Assyrian Expedition|expedition]] against the Assyrians. He killed thousands of [[Assyrians]] along with [[Kurdish tribes]].
* [[April 22]] – WWI: Start of [[Second Battle of Ypres]] – Germany makes its first large scale use of [[chemical weapons|poison gas]] on the Western Front.
* [[April 24]] – Armenian genocide: [[Deportation of Armenian intellectuals on 24 April 1915|deportation of Armenian notables]] from [[Istanbul]] begins.
* [[April 25]] – WWI: Start of the [[Gallipoli Campaign]] by land forces (lasting until January 1916) – A [[landing at Anzac Cove]] is conducted by [[Australian and New Zealand Army Corps]], and a [[landing at Cape Helles]] by British and French troops, to begin the Allied invasion of the [[Gallipoli]] peninsula in the [[Ottoman Empire]].
[[File:RMS Luisitania.jpg|thumb|250px|right| [[May 7]]: WWI: {{RMS|Lusitania}}, sunk by a German [[U-boat]].]]
* [[April 26]] – [[Treaty of London (1915)|Treaty of London]]: Italy secretly agrees to leave the [[Triple Alliance (1882)|Triple Alliance]] with Germany and [[Austria-Hungary]], and join with the [[Allies of World War I|Entente Powers]], in exchange for certain territories of Austria-Hungary on its borders.

=== May ===
{{main|May 1915}}
* [[May 1]] –  General [[Louis Botha]], [[Prime Minister of South Africa]], leads the army in the occupation of [[German South West Africa]].
* [[May 5]] – WWI: Gallipoli Campaign – Forces of the [[Ottoman Empire]] begin shelling [[ANZAC Cove]] from a new position behind their lines.
* [[May 6]] – [[Imperial Trans-Antarctic Expedition]]: [[SY Aurora's drift|SY ''Aurora'''s drift]] – The {{SY|Aurora}} breaks loose from its anchorage during a gale, beginning a 312-day ordeal.<ref>{{cite book|last=Haddelsey|first=Stephen|title=Ice Captain|publisher=The History Press|location=Stroud, Gloucestershire|year=2008|isbn=978-0-7509-4348-2|pages=51–2}}</ref>
* [[May 7]] – WWI
** [[Sinking of the RMS Lusitania|Sinking of the RMS ''Lusitania'']]: {{RMS|Titanic}}'s main rival, the British [[ocean liner]] {{RMS|Lusitania}}, is sunk by [[Imperial German Navy]] [[U-boat]] ''[[SM U-20 (Germany)|U-20]]'' off the south-west coast of Ireland, killing 1,199 civilians en route from New York City to [[Liverpool]]. The best-known of the celebrities on board is American sportsman [[Alfred Gwynne Vanderbilt]] (b. [[1877]]).
** Germany captures the Latvian port city of [[Liepāja|Libau]].
* [[May 9]] – WWI – [[Second Battle of Artois]]: [[German Empire|German]] and [[French Third Republic|French]] forces fight to a standstill; German forces defeat the British at the [[Battle of Aubers Ridge]].
* [[May 17]] – The last purely [[Liberal Party (UK)|Liberal]] government in the United Kingdom ends, when the prime minister [[H. H. Asquith]] forms an all-party [[coalition government]], the [[Asquith coalition ministry]], effective [[May 25]].
* [[May 19]] – WWI: The [[third attack on Anzac Cove]] by Ottoman forces is repelled by the [[Australian and New Zealand Army Corps]].
* [[May 22]]
** [[Quintinshill rail disaster]] in Scotland: The collision and fire kill 226, mostly troops, the largest number of fatalities in a [[List of rail accidents in the United Kingdom|rail accident in the United Kingdom]].
** [[Lassen Peak]], one of the [[Cascade Volcanoes]] in [[California]], erupts, sending an ash plume 30,000 feet in the air, and devastating the nearby area with [[pyroclastic flow]]s and [[lahar]]s. It is the only volcano to erupt in the contiguous United States this century, until the [[1980 eruption of Mount St. Helens]].
* [[May 23]] – WWI: [[Kingdom of Italy|Italy]] joins the [[Allies of World War I|Allies]] after declaring war on [[Austria-Hungary]].
* [[May 25]] – [[Republic of China (1912–49)|China]] agrees to the [[Twenty-One Demands]] of the Japanese.
* [[May 27]] – [[Armenian genocide]]: The [[Temporary Law of Deportation|Tehcir Law]] is promulgated by the Turkish [[Ottoman Empire]] authorizing deportation of the [[Ottoman Armenian population]] to [[Deir ez-Zor]] in the Syrian desert, leading to the deaths of anywhere between 800,000 and over 1,500,000 civilians and confiscation of their property.<ref>{{cite book |last1=Akçam |first1=Taner |author1-link=Taner Akçam |title=[[A Shameful Act]] |date=2006 |publisher=Henry Hold and Company |isbn=978-0-8050-8665-2 |page=249}}</ref>
* [[May 28]] – [[International Congress of Women]] meets at the Hague as a major peace initiative.<ref>{{cite book|last=Paull|first=John|year=2018|url=https://www.academia.edu/36546779|chapter=12:The Women Who Tried to Stop the Great War: The International Congress of Women at The Hague 1915|editor=Campbell, A. H.|title=Global Leadership Initiatives for Conflict Resolution and Peacebuilding|pages=249–266|location=Hershey, PA|publisher=IGI Global|doi=10.4018/978-1-5225-4993-2.CH012 |access-date=May 27, 2021|archive-date=March 25, 2022|archive-url=https://web.archive.org/web/20220325143727/https://www.academia.edu/36546779|url-status=live}}</ref> 
* [[May 29]] – [[Teófilo Braga]] becomes president of [[First Portuguese Republic|Portugal]].

=== June ===
{{main|June 1915}}
* June – [[Armenian genocide]]: 15,000 civilians from the [[Ottoman Armenian population]] of [[Bitlis]] are massacred by Ottoman Turks and Kurds.<ref>{{cite book|author-link=Christopher J. Walker|last=Walker|first=Christopher J.|chapter=The End of Armenian Taron and Baghesh, 1914-1916|title=Armenian Baghesh/Bitlis and Taron/Mush|pages=191–206}}</ref>
* [[June 3]] – [[Mexican Revolution]]: Troops of [[Álvaro Obregón]] and [[Pancho Villa]] clash at [[León, Guanajuato|León]]; Obregón loses his right arm in a grenade attack, but Villa is decisively defeated.
* [[June 5]] – [[Women's suffrage]] in national elections is introduced in Denmark.
* [[June 9]] – U.S. Secretary of State [[William Jennings Bryan]] resigns over a disagreement regarding his nation's handling of the [[sinking of the RMS Lusitania|sinking of the RMS ''Lusitania'']].
* [[June 11]] – Friar [[Leonard Melki]] and hundreds of other Christians are driven out of [[Mardin]] and massacred by [[Ottoman Empire|Ottoman]] troops.<ref>{{cite book|title=Mardine la ville héroïque|last=Simon|first=Hyacinthe|publisher=Maison Naaman pour la culture|year=1991|location=Jounieh-Lebanon}}</ref>
* [[June 16]] – [[Women's Institutes]] are established in Britain.
* [[June 19]] – In [[Iceland]], at this time a dependency of Denmark, [[women's suffrage]] is granted to those over 40.<ref>{{cite web|title=100 years of women's suffrage in Iceland|first=Stefan|last=Jonasson|url=https://www.lh-inc.ca/icelandic-paper/online-stories/548-stefan-jonasson|work=Lögberg Heimskringla|access-date=January 4, 2019|archive-url=https://web.archive.org/web/20190317013707/https://www.lh-inc.ca/icelandic-paper/online-stories/548-stefan-jonasson|archive-date=March 17, 2019|url-status=dead}}</ref>

=== July ===
{{main|July 1915}}
* [[July]]
** WWI: [[South West Africa Campaign]] – The [[Union of South Africa]] occupies [[German South West Africa]] with assistance from Canada, the United Kingdom, the [[Portuguese Republic]] and [[Portuguese Angola]]. South Africa will occupy [[South West Africa]] until March [[1990]].
** [[Armenian genocide]]: 17,000 civilians from the [[Ottoman Armenian population]] of [[Trebizond during the Armenian genocide|Trebizond]] are massacred by Ottoman Turks.<ref name=Gilbert>{{cite book|last=Gilbert|first=Martin|author-link=Martin Gilbert|title=A History of the Twentieth Century|year=2009|publisher=Avon Books|location=New York|page=357}}</ref>
* [[July 1]] – WWI: In [[aerial warfare]], German fighter pilot [[Kurt Wintgens]] becomes the first person to shoot down another plane, using a [[machine gun]] equipped with [[synchronization gear]].
* [[July 7]]
** An extremely overloaded [[International Railway (New York–Ontario)]] [[Tram|trolleycar]] with 157 passengers crashes near [[Queenston, Ontario]], resulting in 15 casualties.
** [[Sinhalese people|Sinhalese]] militia captain [[Henry Pedris]] is executed in [[British Ceylon]] for inciting race riots, a charge later proved false; he becomes a hero of the [[Sri Lankan independence movement]].
* [[July 9]] – WWI: Theodore Seitz, governor of [[German South West Africa]], surrenders to General [[Louis Botha]], between [[Otavi]] and [[Tsumeb]].
* [[July 11]] – WWI: [[Battle of Rufiji Delta]] – German cruiser {{SMS|Königsberg|1905}} is forced to [[Scuttling|scuttle]] in the [[Rufiji River]], [[German East Africa]] (modern-day [[Tanzania]]).
* [[July 14]] – The [[McMahon–Hussein Correspondence]] between [[Hussein bin Ali, Sharif of Mecca]] and the British official [[Henry McMahon (diplomat)|Henry McMahon]] concerning the [[Arab revolt]] against the [[Ottoman Empire]] begins; in exchange for assistance against the Ottomans, the British offer bin Ali their recognition of an independent Arab kingdom, although clear terms are never agreed.<ref>{{cite book|isbn=978-0-141-01728-0|first=Avi|last=Shlaim|author-link=Avi Shlaim|title=Lion of Jordan|publisher=Penguin Books|location=London|year=2008|page=2}}</ref>
* [[July 22]] – WWI: The "[[Great Retreat (Russian)|Great Retreat]]" is ordered on the Eastern Front; Russian forces pull back out of Poland (at this time part of the Russian Empire), taking machinery and equipment with them.
* [[July 24]] – Steamer {{SS|Eastland||2}} capsizes in central Chicago, with the loss of 844 lives.
* [[July 28]] – The [[American occupation of Haiti]] (1915–34) begins.

=== August ===
{{main|August 1915}}
[[File:Galveston Hurricane 1915 wrecked home.jpg|thumb|August: Destruction by the [[1915 Galveston hurricane]].]]
* [[August 5]]–[[August 23|23]] – Hurricane Two of the [[1915 Atlantic hurricane season]] over [[Galveston]] and [[New Orleans]] leaves 275 dead.
* [[August 6]] – WWI: [[Battle of Sari Bair]] (Gallipoli Campaign) – The [[Allies of World War I|Allies]] mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at [[Suvla Bay]].
* [[August 16]] – WWI: The [[Allies of World War I|Allies]] promises the [[Kingdom of Serbia]], should victory be achieved over [[Austria-Hungary]] and its allied [[Central Powers]], the territories of [[Baranya (region)|Baranja]], [[Srem]] and [[Slavonia]] from the [[Cisleithania]]n part of the Dual Monarchy, [[Bosnia and Herzegovina]], and eastern [[Dalmatia]] (from the river of [[Krka (Croatia)|Krka]] to Bar).

=== September ===
{{main|September 1915}}
* [[September 5]] – The [[Zimmerwald Conference]] begins in [[Switzerland]]. 
* [[September 6]] – The prototype [[Tanks in World War I|military tank]] is first tested by the [[British Army]].
* [[September 7]] – Cartoonist [[Johnny Gruelle|John B. Gruelle]] is given a patent for his ''[[Raggedy Ann]]'' doll.
* [[September 8]] – WWI: A [[Zeppelin]] raid destroys No. 61 [[Farringdon Road]], London; the premises are rebuilt in [[1917]], and called The Zeppelin Building.
* [[September 11]] – The [[Pennsylvania Railroad]] begins electrified commuter rail service between [[Paoli, Pennsylvania|Paoli]] and [[Philadelphia]], using overhead AC trolley wires for power. This type of system is later used in long-distance passenger trains between New York City, Washington, D.C., and [[Harrisburg, Pennsylvania]].
* [[September 12]] – French soldiers rescue over 4,000 [[Armenian genocide]] survivors stranded on Musa Dagh, a mountain in the Hatay province of [[Turkey]].
* [[September 25]]–[[October 14]] – WWI: [[Battle of Loos]] – British forces take the [[French Third Republic|French]] town of [[Loos-en-Gohelle|Loos]], but with substantial casualties, and are unable to press their advantage. This is the first time the British use [[poison gas in World War I]], and also their first large-scale use of 'New' (or [[Kitchener's Army]]) units.
* [[September 30]] – WWI: [[Serbian Army]] [[private (rank)|private]] [[Radoje Ljutovac]] becomes the first soldier in history to shoot down an enemy aircraft, with [[Anti-aircraft warfare|ground-to-air]] fire.

=== October ===
{{main|October 1915}}
* [[October 12]] – WWI: British nurse [[Edith Cavell]] is executed by a [[German Empire|German]] firing squad, for helping [[Allies of World War I|Allied]] soldiers escape from Belgium.
* [[October 15]] – WWI: [[Serbian Campaign of World War I|Serbian Campaign]] – [[Austria-Hungary]] invades the [[Kingdom of Serbia]]. [[Kingdom of Bulgaria|Bulgaria]] enters the war, also invading Serbia. The [[Serbian First Army]] retreats towards [[Kingdom of Greece (Glücksburg)|Greece]].
* [[October 16]] – WWI: France declares war on [[Bulgaria]].
* [[October 19]]
** WWI: [[Russia]] and [[Italy]] declare war on [[Bulgaria]].
** [[Mexican Revolution]]: The U.S. recognizes the Mexican government of [[Venustiano Carranza]] ''[[de facto]]'' (not ''[[de jure]]'' until [[1917]]).
* [[October 21]] – The [[United Daughters of the Confederacy]] holds its first annual meeting outside the South, in [[San Francisco]]. Historian General [[Mildred Rutherford]] addresses the gathering on the "Historical Sins of Omission & Commission", of [[Yankee]] historians.
* [[October 23]] – WWI: The torpedoing of [[armored cruiser]] {{SMS|Prinz Adalbert|1901}} results in only 3 men being rescued from a crew of 675, the greatest single loss of life for the [[Imperial German Navy]] in the [[Baltic Sea]] during the war.
* [[October 25]] – [[Lyda Conley]], the first [[Native Americans in the United States|American Indian]] woman to appear before the [[Supreme Court of the United States]] as a lawyer, is admitted to practice there.<ref>"Washington, Oct. 25." ''[[The New York Times]]'', October 26, 1915.</ref>
* [[October 27]] – [[Billy Hughes|William Morris "Billy" Hughes]] becomes the 7th [[Prime Minister of Australia]].
* [[October 28]] – [[St. Johns School fire]]: Fire at St. John's School in [[Peabody, Massachusetts]], United States, claims the lives of 21 girls between the ages of 7 and 17.

=== November ===
{{main|November 1915}}
* [[November 18]] – The U.S. [[silent film]] ''[[Inspiration (1915 film)|Inspiration]]'', the first mainstream movie in which a leading actress ([[Audrey Munson]]) appears [[Nudity in film|nude]], is released.
* [[November 21]] – British polar exploration ship ''[[Endurance (1912 ship)|Endurance]]'' finally breaks apart from pressure of ice around it and sinks into the [[Weddell Sea]], stranding [[Ernest Shackleton]]'s [[Imperial Trans-Antarctic Expedition]] party in the Antarctic.<ref>{{cite book|last=Shackleton|first=Ernest|title=South|publisher=Century Publishing|location=London|year=1983|isbn=0-7126-0111-2|page=98}}</ref><ref>{{cite news|url=http://www.coolantarctica.com/Antarctica%20fact%20file/History/Ernest_Shackleton_map_time_line.htm|title=Ernest Shackleton, Endurance Voyage, Time Line and Map|publisher=CoolAntarctica.com|year=2001|access-date=October 27, 2012|url-status=dead|archive-url=https://web.archive.org/web/20121016131004/http://coolantarctica.com/Antarctica%20fact%20file/History/Ernest_Shackleton_map_time_line.htm|archive-date=October 16, 2012}}</ref> The wreck is discovered at a depth of 3,008 metres (9,869&nbsp;ft), 107 years later in 2022.<ref>{{Cite web|title=Endurance: Shackleton's lost ship is found in Antarctic|url=https://www.bbc.co.uk/news/science-environment-60662541|access-date=9 March 2022|date=9 March 2022|website=BBC News|language=en-US|archive-date=March 12, 2022|archive-url=https://web.archive.org/web/20220312115224/https://www.bbc.co.uk/news/science-environment-60662541|url-status=live}}</ref>
* [[November 23]] – The [[Triangle Film Corporation]] opens its new motion picture theater in [[Massillon, Ohio]].
* [[November 24]] – [[William Joseph Simmons|William J. Simmons]] revives the American Civil War era [[Ku Klux Klan]] at [[Stone Mountain]], [[Georgia (U.S. state)|Georgia]].
* [[November 25]] – [[Albert Einstein]] presents part of his theory of [[general relativity]] to the [[Prussian Academy of Sciences]].<ref>{{cite journal|last=Einstein|first=Albert|date=November 25, 1915|title=Die Feldgleichungen der Gravitation|journal=Sitzungsberichte der Preussischen Akademie der Wissenschaften zu Berlin|pages=844–847|bibcode=1915SPAW.......844E |url=http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/echo/einstein/sitzungsberichte/6E3MAXK4/index.meta|access-date=August 27, 2018|archive-date=July 25, 2023|archive-url=https://web.archive.org/web/20230725074812/https://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/permanent/echo/einstein/sitzungsberichte/6E3MAXK4/index.meta|url-status=live}}</ref>

=== December ===
{{main|December 1915}}
* [[December 4]]–[[December 18|18]] – The '[[Peace Ship]]' ''Oscar II'' chartered by industrialist [[Henry Ford]] sails from [[Hoboken, New Jersey]] to [[Oslo]] on an independent and eventually unsuccessful mission to broker a peace conference.<ref>{{cite book|last=Watts|first=Steven|title=The People's Tycoon: Henry Ford and the American Century|url=https://archive.org/details/peoplestycoonhen00watt|url-access=registration|year=2005|publisher=Alfred A. Knopf|location=New York|page=[https://archive.org/details/peoplestycoonhen00watt/page/228 228]|isbn=978-0-375-40735-2 }}</ref>
* [[December 8]] – [[Jean Sibelius]] conducts the world première of his [[Symphony No. 5 (Sibelius)|Symphony No. 5]] in [[Helsinki]] at a 50th birthday concert for him.<ref>{{cite book|first=Jon|last=Paxman|title=Classical Music 1600–2000: A Chronology|location=London|publisher=Omnibus|year=2014|isbn=978-1-84449-773-7}}</ref>
* [[December 10]] – The 1&nbsp;millionth [[Ford Motor Company|Ford]] car rolls off the assembly line at the [[River Rouge Plant]] in [[Detroit]], Michigan.
* [[December 12]] – [[President of the Republic of China]] [[Yuan Shikai]] declares himself [[Empire of China (1915–16)|Emperor]].
* [[December 18]] – United States President [[Woodrow Wilson]] marries [[Edith Bolling Galt Wilson|Edith B. Galt]], in Washington, D.C.
* [[December 23]] – [[HMHS Britannic|HMHS ''Britannic'']], which will be the largest British ship lost in WWI (though with only 30 fatalities), departs [[Liverpool]] on her maiden voyage as a [[hospital ship]].
* [[December 26]] – The [[Irish Republican Brotherhood]] Military Council decides to stage an [[Easter Rising]] in 1916.

=== Date unknown ===
* Carrier Engineering, predecessor of [[Carrier Global]], a global [[air conditioning]] brand, is founded in [[New Jersey]], United States.<ref>{{cite web|url=http://www.corp.carrier.com/StaticFiles/Carrier.com/Carrier%20Corporate%20Sites%20Content/Corporate-English/Data/History/historyflash.html|title=Carrier Corporation: Interactive Timeline|publisher=Carrier Corporation|location=Palm Beach Gardens|access-date=2012-07-14|archive-url=https://web.archive.org/web/20120708044906/http://www.corp.carrier.com/StaticFiles/Carrier.com/Carrier%20Corporate%20Sites%20Content/Corporate-English/Data/History/historyflash.html|archive-date=2012-07-08}}</ref>
* The WWI song ''[[Just for the Sake of Gold]]'' is published.<ref>{{cite book |last1=Parker |first1=Bernard S. |date=2007 |volume=1 |title=World War I Sheet Music |location=Jefferson |publisher=McFarland & Company, Inc. |page=329 |isbn=978-0-7864-2799-4}}</ref>