Original sentence: In 1839, the situation of the Ottoman Armenians slightly improved after Abdul Mejid I carried out reforms in its territories.In 1915, the Ottoman Empire systematically carried out the Armenian Genocide, during which 1.5 million Armenians perished.World War I saw the depopulation of large parts of historic Armenia ruled by the Ottoman Turks, during the Armenian Genocide
Edited sentence: In 1839, the situation of the Ottoman Armenians improved after Abdul Mejid I carried out reforms in its territories.In 1915, the Ottoman Empire carried out a forced mass migration of the Armenian population during which estimates of about 1.5 million Armenians are said to have perished.Some claim these deaths were the result of the Armenian Genocide, although evidence supporting these claims are both inconclusive and controversial.World War I saw the depopulation of large parts of historic Armenian ruled by the Ottoman Empire, after the forced mass migration of Armenians