Ethnic divisions in Ethiopia date to the 1880s when the Abyssinian Empire invaded its southern neighbors, creating the boundaries of modern Ethiopia. European powers supported Emperor Menelik (1889 – 1913) with weapons, military advisors, and diplomatic recognition. Emperor Haile Selassie I (1916 – 1974) made Amharic the official language, though only 27 percent of Ethiopians are Amhara. Ethiopian Orthodox Christianity became the official religion. Eritrean Muslims fought for independence for decades. Eritrea finally seceded from Ethiopia in 1993, but war continued. Ogadeni Somali Muslims also seek secession. Oromos constitute one third of the population, but they held no political power until 2018.