Italy's first African colony on the Red Sea, springboard for its invasions of Ethiopia.
Ended militarily on 1 April 1941 when British forces seized Asmara and placed the colony under British Military Administration; it remained under British rule until 1952, when the UN federated it with Ethiopia, and in 1962 Eritrea was fully annexed as an Ethiopian province.
The atlas holds 3 border frames for Italian Eritrea — the shape you scrub through changes in 1882 · 1922 · 1938.
Pateman's history of Eritrea covering the Italian colonial period.
Broad modern African history for wider colonial context.