Many kingdoms and states were created and consolidated in Ethiopia and the Horn by conquest, but many others developed through more peaceful borrowing and assimilation of ideas and institutions from neighbors, and even through internal developments, stimulated by population growth, improved production, the need to organize and mobilize for migration, or protection against new external threats.
AbirM (1965) The emergence and consolidation of the monarchies of Ennarya and Jimma in the first half the nineteenth century. Journal of African History6(2): 205–19.
2.
Addis Zemen (1968a) Hidar (November), 8.
3.
Addis Zemen (1968b) Teqemt (October), 25.
4.
AmbroseSH (1982) An archaeological and linguistic reconstruction of history of east Africa. In: EhretCPosnanslayM (eds) In Archaeological and Linguistic Reconstruction of African History. Berkeley, CA: University of California Press, 119–132.
5.
Asmeron Legese (1973) Gada: Three Approaches to the Study of African Society. New York: Free Press
6.
Bahiru Zewde (1998) A Short History of Ethiopia and the Horn. Addis Ababa: AAUP.
7.
BascomWRHerskovitsM (eds) (1959) Continuity and Change in African Cultures. Chicago, IL: University of Chicago Press.
8.
BohannanPCurtinP (1988) Africa and Africans. Prospect Heights, IL: Waveland Press.
9.
CaulkR (1986) Ethiopia and the Horn. In: RobertsAD (ed.) Cambridge History of Africa, VII, 1905–1940. Cambridge: Cambridge University Press, 702–41.
10.
CrummeyD (2000) Land and Society in the Christian Kingdom of Ethiopia: From the Thirteenth to the Twentieth Century. Urbana and Chicago, IL: University of Illinois Press.
11.
CurtinPFeiermanSThompsonLVansinaJ (1984) African History. New York: Longman.
12.
DavidsonB (1991) African in History. New York: Macmillan Publishing Company.
13.
DiopCA (1974) The African Origin of Civilization: Myth or Reality. Chicago, IL: Lawrence Hill.
14.
FalolaT (ed.) (2000) African History before 1885, Vol. 1. Durham, NC: Carolina Academic Press.
15.
FattovichR (2010) The development of ancient states in the northern Horn of Africa, c3000 BC–AD 1000: An archaeological outline. Journal of World Prehistory23(3): 145–75.
16.
GudinaM (2004) Ethiopia. Competing Ethnic Nationalisms and the Quest for Democracy, 1960–2000. Addis Ababa: Chamber Printing House.
17.
HarrisJE (1988) Africans and their History. New York: New American Library.
18.
HuntingfordGWB (1955) The Galla of Ethiopia: The kingdom of Kefa and Janjero. In: Ethnographic Survey of Africa, Part II. London: Lowe Bray Done Ltds, 145–75.
19.
HuntingfordGWB (2010) The Periplus of the Erythraean Sea, by an Unknown Author. Hakluyt Society Second Series.
20.
JacksonJG (1990) Introduction to African History. New York: Carol Publishing Group.
21.
JonesAHMMonroeE (1970) A history of Ethiopia. Oxford: Clarendon Press.
22.
KobishchanovYM (1979) Axum. University Park, PA: Penn State University Press.
23.
LangeW (1979) Domination and Resistance: Narrative Songs of the Kefa Highlands. East Lansing: African Studies Center, Michigan State University.
24.
LegesseG (1971) Conquest of the Kingdom of Kefa. Haile Selassie: Haile Selassie I University.
25.
LewineDN (1974) Greater Ethiopia: The Evolution of a Multi-ethnic society. Chicago, IL: University of Chicago Press.
26.
LewisHSA (1974) Galla Monarchy: Jimma Abba Jifar, Ethiopia, 1830–1932. Chicago, IL: University of Chicago Press
27.
Linel BenderM (1976) The Non-Semitic languages of Ethiopia. Africa Studies Center, East Lancing, Michigan: Michigan State University.
28.
LipskyG (1962) Survey of World Cultures: Its Peoples, its Society, and its Culture, 3rd edn.New Haven, CT: ARAF Press.
29.
Marena Project (n.d.) An Overview of Natural Resource Management Under the Derg. Brighton: Forum for Social Studies, Centro de Experimental Florestal, University of Sussex.
30.
Merid Wolde AregayMW (1971) Southern Ethiopia and the Christian kingdom 1508–1708, with special reference to the Galla migrations and their consequences. PhD Thesis, University of London, UK.
31.
Munro-HayS (1991) Aksum: An African Civilization of Late Antiquity. Edinburgh: Edinburgh University Press.
32.
NicolasG (1976) The Dizzu of Southwest Ethiopia: An Essay in Cultural History based on Religious Interpretations. PhD Thesis, University of California, Los Angeles, USA.
33.
OrentA (1970) Dual organization in southern Ethiopia: Anthropological imagination or ethnographic fact. Ethnology: An International Journal of Cultural and Social Anthropology. IX(3): 222–41.
34.
PerhamM (1969) The Government of Ethiopia. Evanston, IL: North Western University Press.
35.
SerjeanRB (1966) South Arabia and Ethiopia-African elements in the South Arabian population. In: The Proceedings of the Third International Conference of Ethiopian Studies. Addis Ababa: Institute of Ethiopian Studies, 221–39.
36.
SimoonsJF (1960) Northwest Ethiopia: Peoples and Economy. Madison, WI: University of Wisconsin Press.
37.
Taddese Asmelash (n.d.) Common Property Resource Management – A Study on the Institutional Aspect of the Irrigation System and Village Tree Plantation Management in the Ambober Village, Gondar Zuria Woreda, Ethiopia. Copenhagen: Institute of Anthropology, Copenhagen University.
38.
Taddesse Tamrat (1972) Church and State in Ethiopia 1270–1527. Oxford: The Clarendon Press. (Original work published 1968).
39.
Taddesse Tamrat (1988a) Ethnic interaction and integration in Ethiopian history: The case of Gafat. Journal of Ethiopian StudiesXXI: 121–54.
40.
Taddesse Tamrat (1988b) The process of Ethnic interaction and integration in Ethiopian History: The case of the Agaw. Journal of African Studies8: 5–18.
41.
TriminghamSJ (1952) Islam Ethiopia. Oxford: Oxford University Press.