- Parliamentary system of government
- Three regions: Northern, Eastern, and Western
- Federal Capital: Lagos
- Independence gained from Britain on October 1, 1960
- Prime Minister: Abubakar Tafawa Balewa (1960-1966)
- President: Nnamdi Azikiwe (1963-1966)
Second Nigerian Republic (1979-1983)
- Presidential system of government
- 19 states
- Federal Capital: Abuja
- Military handed over power to civilians
Differences:
- System of government: The First Republic operated a parliamentary system, while the Second Republic operated a presidential system.
- Number of regions/states: The First Republic had three regions, while the Second Republic had 19 states.
- Head of state: The head of state in the First Republic was the Prime Minister, while in the Second Republic, it was the President.
- Capital city: The federal capital in the First Republic was Lagos, while in the Second Republic, it was Abuja.
Similarities:
- Both republics were democratic in nature.
- Both republics had a civilian government.
- Both republics faced challenges such as ethnic tension, political instability, and economic problems.