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| 1968, March |
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| Bongo declared one-party rule, led by Parti Démocratique Gabonaise (PDG). | 1 |
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| 1973, Feb |
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| Bongo was reelected president, announced that he had converted to Islam, and changed his name to Omar Bongo. | 2 |
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| 1975 |
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| The constitution was reorganized and gave significant political autonomy to the provinces. | 3 |
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| 1980 |
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| Under a new constitution, municipal elections took place with considerable electoral competition. Nonetheless, the Bongo regime repressed political dissent. | 4 |
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| 1982, Nov |
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| Thirty-two members of the illegal opposition were imprisoned. | 5 |
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| 1990, Jan |
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| Students at Omar Bongo University demonstrated against inadequate facilities and were violently suppressed by government forces. | 6 |
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| Feb |
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| Imposition of economic austerity programs led to waves of strikes. | 7 |
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| May 22 |
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| The Central Committee of the PDG changed its constitution to permit a multiparty political system. | 8 |
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| Sept.–Nov |
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| New elections were marred by fraud, but led to a new government of national unity, under Casimir Oye Mba. | 9 |
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