* 1915 – Alexander Scriabin, Russian composer ( b. 1872 )

The first Russian examples were all made by Yevgeni Bauer for Khanzhonkov during the First World War, and include Grezy, Schastye vechnoi nochi, and Posle smerti, all from 1915.

* 1849 – Nikolay Yakovlevich Sonin, Russian mathematician ( d. 1915 )

* 1875 – Leonid Gobyato, Russian general ( d. 1915 )

* 1872 – Alexander Scriabin, Russian composer ( d. 1915 )

During heavy fighting he was captured by the Austrians in April 1915, when his division became isolated from the rest of the Russian forces.

* 1915 – Georgiy Zhzhonov, Russian actor and writer ( d. 2005 )

Color photography by taking three separate plates was used by other pioneers, such as Russian Sergey Prokudin-Gorsky in the period 1909 through 1915.

The British made early use of underwater hydrophones, while the French physicist Paul Langevin, working with a Russian immigrant electrical engineer, Constantin Chilowski, worked on the development of active sound devices for detecting submarines in 1915 using quartz.

** Vasily Zaytsev, Russian World War II hero ( b. 1915 )

* January 6 – Alexander Scriabin, Russian composer ( d. 1915 )

* February 22 – Nikolay Yakovlevich Sonin, Russian mathematician ( d. 1915 )

Even as late as 1915, the Caesar cipher was in use: the Russian army employed it as a replacement for more complicated ciphers which had proved to be too difficult for their troops to master ; German and Austrian cryptanalysts had little difficulty in decrypting their messages.

Paul returned to serve in the Russian army during the First World War, and Nicholas II rewarded his uncle's loyalty by elevating Olga and her children as Princess and Princes Paley in 1915.

Nicholas refused to grant the bride or their son, George Mikhailovich ( 1910 – 1931 ) a title initially, legitimising George and incorporated him into the Russian nobility under the name " Brassov " in 1915, although he used the title of count under the monarchy from 1915 and, along with his mother, was granted a princely prefix in exile by Cyril Vladimirovich, Grand Duke of Russia in 1928.

The United States ( 1920 – 1933 ), Finland ( 1919 – 1932 ), Norway ( 1916 – 1927 ), Canada ( 1901 – 1948 ), Iceland ( 1915 – 1922 ) and the Russian Empire / USSR ( 1914 – 1925 ) had alcohol prohibition.

* Russian — Blok, Alexander: The Fairground Booth a. k. a. The Puppet Show ( 1906 ); Evreinov, Nikolai: A Merry Death ( 1908 ), Today's Columbine ( 1915 ), The Chief Thing ( 1921 ; turned into film, La Comédie du bonheur, in 1940 ).

In 1915, World War I needs led to the construction of the railroad from Petrozavodsk to an ice-free location on the Murman Coast in the Russian Arctic, to which Russia's allies shipped military supplies.

* Kingdom of Poland ( 1916 – 1918 ) – The Central Powers ' forces occupied Russian Congress Poland in 1915 and in 1916 the German Empire and Austria-Hungary created a Polish Monarchy in order to exploit the occupied territories in an easier way and mobilize the Poles against the Russians ( see Polish Legions ).

* Duchy of Courland and Semigallia ( 1918 ) – in 1915 the Imperial German forces occupied the Russian Courland Governorate and the Treaty of Brest-Litovsk ended the war in the east, so the local ethnic Baltic Germans established a Duchy under the German crown from that part of Ober Ost, with a common return of civil administration in favor of military.

Despite early success and the capture of the towns of Rastenburg and Gumbinnen, In the Battle of Tannenberg in 1914 and the Second Battle of the Masurian Lakes in 1915, the Russians were decisively defeated and forced to retreat, followed by the German Army advancing into Russian territory.

Russian occupation lasted until May 1915.

During World War I, the city was one of the focal points of Austro-Hungarian / German Gorlice-Tarnów Offensive of 1915, a military operation that changed the situation in the Eastern Front and resulted in major retreat of opposing Russian forces.

Gallipoli did not experience any more wars until World War I, when British and colonial forces attacked the peninsula in 1915, seeking to secure a route to relieve their ally Imperial Russia in the east.

The ANZAC forces completed their retreat by 19 December 1915 and the remaining British elements by 9 January 1916.

When Bulgaria entered the war as a German ally in October 1915, Venizelos invited Entente forces into Greece ( the Salonika Front ), for which he was again dismissed by Constantine.

In 1915 Keystone Studios became an autonomous production unit of the ambitious Triangle Film Corporation, as Sennett joined forces with movie bigwigs D. W. Griffith and Thomas Ince.

* 1915 – World War I: Second Battle of Artois between German and French forces.

The Bulgarians declared war on 14 October and the Kingdom was eventually overpowered by the joint forces of the German Empire, Austria-Hungary and Bulgaria in 1915.

With his forces vastly outnumbered and outgunned, Serb Vojvoda Marshal Radomir Putnik ordered a full retreat of the Serbian military south and west through Montenegro and into Albania on 25 November 1915.

During the invasion of the Balkans in 1915, Austro-Hungarian Empire had pushed the Serbian forces into Montenegro.

In April 1915, his health recovered, he was posted as chief of staff to the 86th Infantry Division, which was serving as part of General Max von Gallwitz's forces on the eastern front.

Imperial Russian army forces created a zone of destruction by using a large scale scorched earth strategy during their retreat from the German army in the summer / autumn of 1915.

The only known date that is certain in the development of Fokker's pioneering Stangensteuerung system is on May 16, 1915, when an officer of the Bavarian armed forces, working with Idflieg, alerted his province of Germany that " firing trials of an interesting nature, from a light monoplane, were to take place on the 19th of 20th of May ".

In late 1915, however, German generals were given control and invaded Serbia with Austrian and Bulgarian forces.

The city was then taken by forces under General Sánchez in the same year, and by forces loyal to Francisco Villa in 1915.

The British Empire forces arrived at Kut around 3 December 1915.

The pursuing Ottoman forces arrived on 7 December 1915.

Between 1890 and 1915, Mahan and British admiral John Fisher ( 1841 – 1920 ) faced the problem of how to dominate home waters and distant seas with naval forces not strong enough to do both.

In 1915, Pancho Villa made a night attack on Agua Prieta that was repelled by the forces of Plutarco Elías Calles, assisted by large searchlights ( possibly powered by American electricity ).

After three months serving as commander of the Cavalry Corps, beginning in May 1915, at which time he was also made a temporary lieutenant-general, Byng was off to Gallipoli to head the IX Corps and supervise the successful British, Australian, and New Zealand forces withdrawal from the ill-fated campaign.

The front between the Serbian and Bulgarian forces at the time of the 1915 Battle of Ovche Pole in the Serbian Campaign ( World War I ) stretched near to Vranje.