Answer: Here's A Time-Line.
Explanation:
8000 B.C. – Creation of oldest currently known artifacts and stone shelters. Igboland mostly occupied by foragers, including Bantu ancestors.
3000–500 B.C. – Development of agriculture (probably including yam cultivation) and animal husbandry.
500 B.C. – A.D. 200 – Nok culture flourishes in Northern Nigeria.
400–100 B.C. – Ironworking develops around Opi, Nsukka
500 A.D. - End of the Nok culture