Horn of Africa complex pattern of interrelationships among the various groups. According to "Ethnologue", there are 10 individual languages spoken in Djibouti, 14 in Eritrea, 90 in Ethiopia, and 15 in Somalia. Most people in the Horn speak Afroasiatic languages of the Cushitic or Semitic branches. The former includes Oromo, spoken by the Oromo people in Ethiopia, and Somali, spoken by the Somali people in Somalia, Djibouti and Ethiopia; the latter includes Amharic, spoken by the Amhara people of Ethiopia, and Tigrinya spoken by the Tigrayan people of Eritrea and Ethiopia. Other Afroasiatic languages with a significant number of speakers include the Cushitic
Horn of Africa Bantu groups also speak variants of the Niger-Congo Swahili and Mushunguli languages. The countries of the Horn of Africa have been the birthplace of many ancient, as well as modern, cultural achievements in several fields including agriculture, architecture, art, cuisine, education, literature, music, technology and theology. Ethiopian agriculture established the earliest known use of the seed grass teff ("Poa abyssinica") between 4000–1000 BCE. Teff is used to make the flatbread injera/taita. Coffee also originated in Ethiopia and has since spread to become a worldwide beverage. Ethiopian art is renowned for the ancient tradition of Ethiopian Orthodox Christian iconography stretching back