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| 1928 |
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| First school for girls in Northern Nigeria opened in Ilorin. | 1 |
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| 1930 |
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| Elementary Training College for Teachers established in Katsina. | 2 |
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| 1931–34 |
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| Numerous small risings throughout the southern Sahara against the French. | 3 |
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| 1934–35 |
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| Branches of French Social and Labor Parties established in Senegal. | 4 |
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| 1936 |
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| First airmail service between London and Kano introduced. | 5 |
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| 1938 |
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| Twenty thousand troops in French West Africa recruited for the war effort. Seven thousand were sent to France to augment the 18,000 regular tirailleurs troops stationed in West Africa and the 29,000 already in France. | 6 |
| French West African officials first recognized African trade unions in 1937. The following year, African railway workers at Thies staged a strike on the Dakar-Niger line. Authorities reacted by calling in French troops to crush the strike. The violence that followed left six dead and at least 30 wounded. | 7 |
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| 1940 |
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| For military service 130,000 French West Africans were recruited. | 8 |
| German occupation of France and the establishment of the Vichy government fractured colonial political alliances. Dakar originally sided with Vichy. | 9 |
| Anglo–Free French expedition to Dakar failed. | 10 |
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| July 8 |
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| The British attacked battleship Richelieu in Dakar Harbor. | 11 |
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| Nov. 26 |
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| Niger and Chad declared themselves in favor of the Free French. | 12 |
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