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Portuguese Guinea was created in 1474.
Portuguese Guinea (1474-1974)
On Jan 1, 1471, Portuguese explorers Pedro Escobar and João de Santarém discovered 'Ano Bom' (Equatorial Guinea).
The portuguese colonized Port Guinea, which later became Guinea-Bissau.
Equatorial Guinea was discovered by the Portuguese explorer Fernão do Pó in 1472.