Río Muni
A great deal of political party activity ensued when Equatorial Guinea attained autonomy from Spain in 1963. Bubi and Fernandino parties on the island preferred separation from Río Muni or a loose federation. Ethnically-based parties in Río Muni favored independence for a united country comprising Bioko and Río Muni, an approach that was adopted. The Movement for the Self-Determination of Bioko Island (MAIB), which advocates independence for the island under Bubi control, is one of the offshoots of the era immediately preceding independence.