What happened April 1915 AD

In April 1915, Stravinsky received a commission from Winnaretta Singer (Princesse Edmond de Polignac) for a small-scale theatrical work to be performed in her Paris salon. The result was Renard (1916), which he called "A burlesque in song and dance".

The rival armies of Villa and Obregón met on 6–15 April 1915 in the Battle of Celaya.

In April, the Mediterranean Expeditionary Force, including the Australian and New Zealand Army Corps (ANZAC), began its assault at Gallipoli. Both of these campaigns failed and Churchill was held by many MPs, particularly Conservatives, to be personally responsible.

On 19 April 1915, Jevdet Bey demanded that the city of Van immediately furnish him 4,000 soldiers under the pretext of conscription. However, it was clear to the Armenian population that his goal was to massacre the able-bodied men of Van so that there would be no defenders. Jevdet Bey had already used his official writ in nearby villages, ostensibly to search for arms, but in fact to initiate wholesale massacres. The Armenians offered five hundred soldiers and exemption money for the rest in order to buy time, but Jevdet Bey accused the Armenians of "rebellion" and asserted his determination to "crush" it at any cost. "If the rebels fire a single shot", he declared, "I shall kill every Christian man, woman, and" (pointing to his knee) "every child, up to here".

Both sides tried to break the stalemate using scientific and technological advances. On 22 April 1915, at the Second Battle of Ypres, the Germans (violating the Hague Convention) used chlorine gas for the first time on the Western Front. Several types of gas soon became widely used by both sides, and though it never proved a decisive, battle-winning weapon, poison gas became one of the most-feared and best-remembered horrors of the war.

In April 1915, Brigadier General L. S. Blackden lectured to the group on the war effort; Garvey endorsed Blackden's calls for more Jamaicans to sign up to fight for the Empire on the Western Front. The group also sponsored musical and literary evenings as well as a February 1915 elocution contest, at which Garvey took first prize.

On the night of 23–24 April 1915, known as Red Sunday, the Ottoman government rounded up and imprisoned an estimated 250 Armenian intellectuals and community leaders of the Ottoman capital, Constantinople, and later those in other centers, who were moved to two holding centers near Angora (Ankara).