
Source: sharrocks / iStock via Getty Images
16. Trinidad and Tobago
> Joined: Aug. 31, 1962
> Population: 1,403,370
> System of government: Unitary Westminster republic

Source: Pawel Gaul / iStock via Getty Images
17. Uganda
> Joined: Oct. 9, 1962
> Population: 47,123,530
> System of government: Unitary presidential republic

Source: omersukrugoksu / iStock via Getty Images
18. Kenya
> Joined: Dec. 12, 1963
> Population: 5,498,570
> System of government: Unitary presidential republic

Source: PeterHermesFurian / Getty Images
19. Malawi
> Joined: July 6, 1964
> Population: 19,647,680
> System of government: Unitary presidential republic

Source: PeterHermesFurian / iStock via Getty Images
20. Malta
> Joined: Sep. 21, 1964
> Population: 516,870
> System of government: Unitary Westminster republic
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