History
The south holds some of the deepest human history anywhere. Fossils found in the Omo Kibish formation include among the oldest known remains of anatomically modern humans, and the Lower Omo is a UNESCO World Heritage Site for its hominin and stone-tool finds. For most of recorded history the region was organised in independent kingdoms and chiefdoms — Kaffa, Wolaita, Sidama, Gamo and many others — and in the pastoral societies of the lowlands, trading ivory, coffee, slaves and gold towards the highlands and the coast.
The kingdom of Kaffa, ruled from the forested highlands around Bonga, kept its independence until Menelik II's armies conquered it in 1897, the same era in which Wolaita and much of the south were brought into the Ethiopian empire. The conquests brought northern settlers and landlords, and resentments over land lasted well into the 20th century; the Derg's 1975 land reform abolished the old tenancy system.
Under the 1995 constitution most of the south was joined into the Southern Nations, Nationalities and Peoples' Region. Its peoples then pushed for their own states: Sidama became a region after a 2019 referendum, South West Ethiopia followed in 2021, and in 2023 what remained was divided into the South Ethiopia and Central Ethiopia regional states. Gambela, on the Baro River, was once a British-run trading port for steamers from Sudan, and has hosted large numbers of South Sudanese refugees. In the Omo, the Gibe III dam and new sugar plantations have changed the river's flood cycle on which lowland farming depended.
