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city, Abia state, southern Nigeria. It lies along the west bank of the Aba River, at the intersection of roads from Port Harcourt, Owerri, Umuahia, Ikot Ekpene, and Ikot Abasi (Opobo). Aba was a traditional market town for the Igbo (Ibo) people of the tropical rainforest before the establishment of a British military post there in 1901. With the construction of the railway in 1915 from Port Harcourt (36 miles [58 km] southwest), the city became a major collecting point for agricultural produce (especially palm oil and palm kernels). By the 1930s Aba was a settled urban community, and it is now a large industrial and commercial centre. An 18.5-mile- (30-kilometre-) long pipeline from the Imo River natural-gas field provides power for Aba's industrial estate. Textiles, pharmaceuticals, soap, plastics, cement, footware, and cosmetics are manufactured in the city, and there are also a brewery and a distillery. Aba has a school of arts and science, secondary schools, a teacher-training college, and several technical and trade institutes. The city is noted for its handicrafts. Pop. (2004 est.) 820,900