In April 1915 the Ottoman government embarked upon the systematic decimation of its civilian Armenian population. The persecutions continued with varying intensity until 1923 when the Ottoman Empire ceased to exist and was replaced by the Republic of Turkey. The Armenian population of the Ottoman state was reported at about two million in 1915. An estimated one million had perished by 1918, while hundreds of thousands had become homeless and stateless refugees. By 1923 virtually the entire Armenian population of Anatolian Turkey had disappeared.
Armenians annually commemorate the Genocide on April 24 at the site of memorials raised by the survivors in all their communities around the world.
For more information about the Armenian Genocide, the following are a few on-lilne resources: