Okafor, Amanke

2

Babatope, Ebenezer

1

Brown, Milton

1

Forsyth, Frederick

1

Williams, Harry

1

Colonies

3

Living conditions

2

Politics

2

Children

1

Civil war

1

Commonwealth

1

Democracy

1

Emigration and immigration

1

Environment

1

Gas industry

1

Genocide

1

Health

1

Independence movements

1

International relations

1

International trade

1

Museums and exhibitions

1

Oil industry

1

Political ideologies

1

Political leaders

1

Revolutions

1

Social conditions

1

Trade unions

1

War

1

1952

2

1969

2

1948

1

1950

1

1962

1

1968

1

1970

1

1986

1

1987

1

1997

1