What was nigeria's government like after it gained independence (from 1966 to 1999)?

URGENT

Nigeria became a British protectorate in 1901. The period of colonisation lasted until 1960, when an independence movement succeeded. Nigeria first became a republic in 1963, but succumbed to military rule three years later, after a bloody coup d'état.

First Republic: 1960–1979

British period: 1800–1960

Second Republic: 1979–1983

Fourth Republic: 1999–present