Aba is a city and a big trading center in Abia State

Abia State

Abia State is a state in southeastern Nigeria. The capital is Umuahia, although the major commercial city is Aba, formerly a British colonial government outpost. The state was created in 1991 from part of Imo State and its citizens are predominantly Igbo people...

, southern Nigeria

Nigeria

Nigeria , officially the Federal Republic of Nigeria, is a federal constitutional republic comprising 36 states and its Federal Capital Territory, Abuja. The country is located in West Africa and shares land borders with the Republic of Benin in the west, Chad and Cameroon in the east, and Niger in...

, located on the Aba River. Aba was established by the Igbo People

Igbo people

Igbo people, also referred to as the Ibo, Ebo, Eboans or Heebo are an ethnic group living chiefly in southeastern Nigeria. They speak Igbo, which includes various Igboid languages and dialects; today, a majority of them speak English alongside Igbo as a result of British colonialism...

 of Nigeria as a market town and then later a military post was placed there by the British colonial administration

British Empire

The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom. It originated with the overseas colonies and trading posts established by England in the late 16th and early 17th centuries. At its height, it was the...

 in 1901. The city became a collecting point for agricultural products following the British made railway running through it to Port Harcourt.