On 24 April 1915 , Armenian intellectuals were arrested by Ottoman authorities and , with the Tehcir Law ( 29 May 1915 ) , eventually a large proportion of Armenians living in Anatolia perished in what has become known as the Armenian Genocide .
Western Armenia remained under Ottoman rule until the Ottoman Empire itself fell in World War I. On April 24 , 1915 , Armenian intellectuals were arrested by Ottoman authorities and , with the Tehcir Law ( 29 May 1915 ) , eventually a large proportion of Armenians living in Anatolia died in what has become known as the Armenian Genocide .