Cheatsheet: Nigerian History & Constitution

1. Pre-Colonial Nigeria

1.1 Major Kingdoms and Empires

Kingdom/EmpireKey Features
Kanem-Bornu EmpireExisted 9th-19th century; located in northeastern Nigeria; Islamic empire; reached peak under Mai Idris Alooma (1571-1603)
Oyo EmpireYoruba empire; flourished 17th-18th century; capital at Oyo-Ile; had powerful cavalry; Alaafin was supreme ruler
Benin EmpireLocated in southern Nigeria; famous for bronze and brass artwork; ruled by Oba; reached peak in 15th-16th century
Sokoto CaliphateEstablished 1804 by Usman dan Fodio; largest empire in 19th century West Africa; Islamic state; capital at Sokoto
Nri KingdomIgbo kingdom; ancient spiritual and political entity; priest-kings called Eze Nri; existed from 10th century

1.2 Political Systems

  • Centralized systems: Benin, Oyo, Kanem-Bornu (hereditary monarchies with defined political structures)
  • Decentralized systems: Igbo (village republics), Tiv (gerontocratic councils)
  • Theocratic system: Sokoto Caliphate combined religious and political authority
  • Age-grade systems: Common in southeastern Nigeria for social organization

1.3 Economic Activities

  • Agriculture: farming of yam, cassava, millet, guinea corn
  • Trade: Trans-Saharan trade (gold, salt, slaves, kola nuts)
  • Crafts: bronze casting (Benin), leather work (Hausa), wood carving (Yoruba)
  • Currency: cowries, iron bars, brass rods, salt, cloth

2. Colonial Period (1861-1960)

2.1 British Colonization Timeline

Year/PeriodEvent
1861Lagos became British colony
1885Berlin Conference partitioned Africa; Oil Rivers Protectorate established
1900Northern and Southern Protectorates created; Royal Niger Company charter revoked
1906Colony of Lagos merged with Southern Protectorate
1914Amalgamation of Northern and Southern Protectorates by Lord Lugard
1946Richards Constitution introduced
1951Macpherson Constitution implemented
1954Lyttleton Constitution established federal system
1960Nigeria gained independence on October 1

2.2 Key Colonial Administrators

  • Lord Frederick Lugard: Governor-General; architect of amalgamation (1914); introduced indirect rule
  • Sir Hugh Clifford: Governor (1919-1925); introduced Legislative Council
  • Sir Arthur Richards: Governor (1943-1948); introduced Richards Constitution (1946)
  • Sir John Macpherson: Governor-General (1948-1955); Macpherson Constitution (1951)
  • Sir James Robertson: Last Governor-General (1955-1960)

2.3 Colonial Constitutions

ConstitutionKey Features
Clifford Constitution (1922)First elective principle; Legislative Council for Lagos and Southern provinces; 4 elected members
Richards Constitution (1946)Created 3 regions (North, West, East); introduced regional councils; promoted unity
Macpherson Constitution (1951)Increased regional autonomy; quasi-federal structure; elected majority in central legislature
Lyttleton Constitution (1954)Full federal system; regions gained more powers; established Federal Supreme Court

2.4 Nationalist Movements and Leaders

LeaderParty/Movement
Herbert MacaulayFather of Nigerian Nationalism; founded NNDP (Nigerian National Democratic Party) 1923
Nnamdi AzikiweFounded NCNC (National Council of Nigeria and the Cameroons) 1944; first Governor-General
Obafemi AwolowoFounded Action Group (AG) 1951; Premier of Western Region
Ahmadu BelloSardauna of Sokoto; leader of NPC (Northern People's Congress); Premier of Northern Region
Abubakar Tafawa BalewaNPC; first Prime Minister of Nigeria (1957-1966)

3. Post-Independence Nigeria (1960-Present)

3.1 Independence and First Republic (1960-1966)

  • October 1, 1960: Independence achieved; became a constitutional monarchy
  • October 1, 1963: Nigeria became a republic; Nnamdi Azikiwe became first President
  • Parliamentary system of government
  • Three regions: Northern, Western, Eastern
  • Ended by military coup on January 15, 1966

3.2 Military Coups and Regimes

DateEvent/Leader
January 15, 1966First military coup led by Major Chukwuma Nzeogwu; Aguiyi-Ironsi became Head of State
July 29, 1966Counter-coup; Lt. Col. Yakubu Gowon became Head of State
July 29, 1975Gowon overthrown; Gen. Murtala Mohammed became Head of State
February 13, 1976Murtala Mohammed assassinated; Gen. Olusegun Obasanjo became Head of State
December 31, 1983Maj. Gen. Muhammadu Buhari overthrew Second Republic
August 27, 1985Gen. Ibrahim Babangida overthrew Buhari
November 17, 1993Gen. Sani Abacha seized power
June 8, 1998Abacha died; Gen. Abdulsalami Abubakar became Head of State

3.3 Nigerian Republics

RepublicPeriod
First Republic1963-1966; Parliamentary system; ended by military coup
Second Republic1979-1983; Presidential system; Shehu Shagari as President; ended by military coup
Third RepublicAborted in 1993; June 12 election annulled by Babangida
Fourth Republic1999-present; Presidential system; started with Olusegun Obasanjo

3.4 Nigerian Civil War (1967-1970)

  • Duration: July 6, 1967 to January 15, 1970
  • Cause: Secession of Eastern Region as Republic of Biafra
  • Biafran leader: Lt. Col. Odumegwu Ojukwu
  • Federal leader: Gen. Yakubu Gowon
  • Ended with "No Victor, No Vanquished" policy
  • Creation of 12 states from 4 regions before war

3.5 Presidents of Fourth Republic

PresidentPeriod
Olusegun Obasanjo1999-2007 (PDP)
Umaru Musa Yar'Adua2007-2010 (PDP); died in office
Goodluck Ebele Jonathan2010-2015 (PDP); became President after Yar'Adua's death
Muhammadu Buhari2015-2023 (APC)
Bola Ahmed Tinubu2023-present (APC)

4. The Nigerian Constitution

4.1 Constitutional Development

ConstitutionKey Points
Independence Constitution (1960)Parliamentary system; Queen Elizabeth II as Head of State; three regions
Republican Constitution (1963)Nigeria became a republic; President as ceremonial head; retained parliamentary system
1979 ConstitutionPresidential system; adopted American model; Second Republic; 19 states
1999 ConstitutionCurrent constitution; presidential system; federal structure; 36 states and FCT

4.2 Structure of Government (1999 Constitution)

4.2.1 Executive Branch

  • President: Head of State and Commander-in-Chief; 4-year term (maximum 2 terms)
  • Vice President: Succeeds President if office becomes vacant
  • Federal Executive Council: Ministers appointed by President
  • Qualification: 35 years minimum age; Nigerian citizen by birth; educated to secondary school level

4.2.2 Legislative Branch

ChamberComposition
Senate109 members: 3 senators per state (108) + 1 from FCT; presided by Senate President
House of Representatives360 members based on population; presided by Speaker

4.2.3 Judicial Branch

  • Supreme Court: Highest court; final court of appeal; headed by Chief Justice of Nigeria
  • Court of Appeal: Intermediate appellate court
  • Federal High Court: Handles federal matters
  • State High Courts, Magistrate Courts, Customary Courts, Sharia Courts (in northern states)

4.3 Fundamental Rights (Chapter IV)

  • Right to life (Section 33)
  • Right to dignity of human person (Section 34)
  • Right to personal liberty (Section 35)
  • Right to fair hearing (Section 36)
  • Right to private and family life (Section 37)
  • Right to freedom of thought, conscience, and religion (Section 38)
  • Right to freedom of expression and press (Section 39)
  • Right to peaceful assembly and association (Section 40)
  • Right to freedom of movement (Section 41)
  • Right to freedom from discrimination (Section 42)
  • Right to acquire property (Section 44)

4.4 Citizenship

TypeRequirements
By BirthBorn in Nigeria after independence; parents or grandparents are Nigerian citizens
By RegistrationForeign wife/husband of Nigerian citizen; person born outside Nigeria with Nigerian parent
By NaturalizationResident for 15 years continuously; of good character; intends to reside in Nigeria

4.5 Directive Principles of State Policy (Chapter II)

  • Political objectives: sovereignty, national integration, democratic system
  • Economic objectives: suitable employment, just minimum wage, equal pay for equal work
  • Social objectives: free and compulsory primary education, university education as directed
  • Educational objectives: free education at all levels when practicable
  • Environmental objectives: protect and improve the environment

4.6 Federal Character Principle

  • Section 14(3): Ensures diversity in government composition
  • Prevents dominance by persons from few states or ethnic groups
  • Applies to appointments and distribution of resources
  • Federal Character Commission enforces compliance

4.7 State Creation

  • 1960: 3 regions (Northern, Western, Eastern)
  • 1963: 4 regions (Mid-Western created)
  • 1967: 12 states created by Gowon
  • 1976: 19 states under Murtala Mohammed
  • 1987: 21 states under Babangida
  • 1991: 30 states under Babangida
  • 1996: 36 states under Abacha
  • Current: 36 states + Federal Capital Territory (Abuja)

5. Key National Symbols and Facts

5.1 National Symbols

SymbolDetails
National FlagGreen-White-Green vertical stripes; designed by Taiwo Akinkunmi; adopted 1960
National Anthem"Arise, O Compatriots"; adopted 1978; replaced "Nigeria We Hail Thee" (1960-1978)
National PledgeWritten in 1976; begins "I pledge to Nigeria my country"
Coat of ArmsBlack shield, two white horses, Eagle, Y-shaped band (Rivers Niger and Benue)
National Motto"Unity and Faith, Peace and Progress"
National CurrencyNaira (₦) introduced 1973; replaced Nigerian pound

5.2 Geopolitical Zones

  • North-West: Jigawa, Kaduna, Kano, Katsina, Kebbi, Sokoto, Zamfara (7 states)
  • North-East: Adamawa, Bauchi, Borno, Gombe, Taraba, Yobe (6 states)
  • North-Central: Benue, Kogi, Kwara, Nasarawa, Niger, Plateau, FCT (6 states + FCT)
  • South-West: Ekiti, Lagos, Ogun, Ondo, Osun, Oyo (6 states)
  • South-East: Abia, Anambra, Ebonyi, Enugu, Imo (5 states)
  • South-South: Akwa Ibom, Bayelsa, Cross River, Delta, Edo, Rivers (6 states)

5.3 Important National Dates

DateSignificance
January 1New Year's Day (Public Holiday)
May 1Workers' Day (Public Holiday)
May 29Democracy Day (commemorates return to civilian rule in 1999)
June 12Democracy Day (since 2018; commemorates 1993 election)
October 1Independence Day (National Day)

5.4 Major Ethnic Groups

  • Hausa-Fulani: Predominantly in northern Nigeria; Islamic; largest ethnic group
  • Yoruba: Southwestern Nigeria; significant in Lagos, Oyo, Ogun, Ondo, Osun, Ekiti
  • Igbo: Southeastern Nigeria; mainly in Abia, Anambra, Ebonyi, Enugu, Imo
  • Other major groups: Ijaw, Kanuri, Ibibio, Tiv, Edo, Nupe, Gwari
  • Over 250 ethnic groups in total

6. Constitutional Amendments and Reforms

6.1 Amendment Process

  • Requires two-thirds majority of National Assembly (both chambers)
  • Approval by at least two-thirds of state Houses of Assembly (24 out of 36 states)
  • President's assent required
  • Section 9 of 1999 Constitution specifies procedure

6.2 Electoral System

6.2.1 Independent National Electoral Commission (INEC)

  • Established by Section 153 of 1999 Constitution
  • Responsible for conducting elections (federal, state, local government)
  • Chairman appointed by President (subject to Senate confirmation)
  • 12 National Commissioners

6.2.2 Presidential Election Requirements

  • Simple majority of votes cast
  • At least 25% of votes in two-thirds of all states (24 states) and FCT
  • If not met, second round between top two candidates

6.3 Local Government System

  • Third tier of government (constitutional status)
  • 774 Local Government Areas in Nigeria
  • Functions: primary education, healthcare, sanitation, markets
  • Sources of revenue: federal allocation, state allocation, internal revenue
  • Chairman as head; Legislative Council

6.4 Public Services

ServiceFunction
Civil ServiceAdministrative arm of government; permanent bureaucracy
Police ForceMaintenance of law and order; headed by Inspector-General of Police
Armed ForcesArmy, Navy, Air Force; headed by Chief of Defence Staff; President is Commander-in-Chief
JudiciaryInterpretation of laws; administration of justice

7. International Relations and Memberships

7.1 Regional Organizations

  • Economic Community of West African States (ECOWAS): Founding member in 1975
  • African Union (AU): Successor to OAU; Nigeria is a key member
  • Lake Chad Basin Commission: Member nation
  • Niger Basin Authority: Member nation

7.2 International Organizations

  • United Nations: Member since 1960
  • Commonwealth of Nations: Member nation
  • Organization of Petroleum Exporting Countries (OPEC): Joined 1971
  • Non-Aligned Movement: Member nation
  • World Trade Organization (WTO): Member nation

7.3 Foreign Policy Principles

  • African centerpiece: Africa as cornerstone of foreign policy
  • Non-alignment: Not aligned to any power bloc
  • Respect for sovereignty and territorial integrity
  • Peaceful settlement of disputes
  • Anti-apartheid stance (historical)

8. Economic and Social Development

8.1 Natural Resources

  • Crude oil: Major export; discovered in Oloibiri (1956); commercial production (1958)
  • Natural gas: Significant reserves
  • Solid minerals: Tin, coal, limestone, iron ore, gold
  • Agricultural products: Cocoa, rubber, palm oil, groundnut, cotton

8.2 National Development Plans

  • First National Development Plan (1962-1968)
  • Second National Development Plan (1970-1974): Post-civil war reconstruction
  • Third National Development Plan (1975-1980)
  • Fourth National Development Plan (1981-1985)
  • Vision 2020 (launched 2009): Economic development blueprint

8.3 Key Parastatals and Agencies

  • Nigerian National Petroleum Corporation (NNPC): Oil and gas
  • Central Bank of Nigeria (CBN): Monetary policy; established 1958
  • Economic and Financial Crimes Commission (EFCC): Anti-corruption; established 2003
  • Independent Corrupt Practices Commission (ICPC): Anti-corruption; established 2000
  • National Youth Service Corps (NYSC): Established 1973; one-year service for graduates
  • National Drug Law Enforcement Agency (NDLEA): Drug control
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