9000 B.C. Earliest human fossils in Nigeria

1472 Portuguese sailers first land in Nigeria.

16-18th Centuries Nigerians are traded to the Americas as enslaved people.

1861-1914 Great Britain governs over Nigerian leaders.

October 1, 1960 Nigeria becomes independent from Britain.

1963 Nigeria becomes a republic.

1967-1970 Nigerian Civil War/Biafran War.

1999 Nigeria returned to sustained civilian democratic government and its current constitutional order began.