Complex sentence: The ethnic cleansing of Armenians during the final years of the Ottoman Empire is widely considered a genocide, an estimated 1.5 million victims, with one wave of persecution in the years 1894 to 1896 culminating in the events of the Armenian Genocide in 1915 and 1916.
Split into simpler sentences: The ethnic cleansing of Armenians during the final years of the Ottoman Empire is widely considered a genocide, resulting with an estimated 1.5 million victims. The first wave of persecution was in the years 1894 to 1896, the second one culminating in the events of the Armenian Genocide in 1915 and 1916.