Timeline of Port Harcourt

This is a timeline of the history of Port Harcourt, the capital of Rivers State, Nigeria. == 19th century == 1869 – A civil war in the Bonny Kingdom splits the polity into rival houses; Jaja leads the Opobo (Opubo) group to found Opobo at the Imo River estuary, reshaping trade routes across the Bonny–Imo river corridor near the future Port Harcourt area.