In a country with more than 250 individual tribal languages, English is the only language common to most people.
However, since the coming of the British and the introduction of mission schools in southern Nigeria, English has become the language common to most people in the area.
Their grouping together into a single entity known as Nigeria was a construct of their British colonizers.
These various ethnic groups never considered themselves part of the same culture.
Abuja is in a federal territory that is not part of any state.
While Abuja is the official capital, its lack of adequate infrastructure means that Lagos remains the financial, commercial, and diplomatic center of the country. Nigeria has the largest population of any African country.