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| e. Bolivia |
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(See 1909–17)| |
| 1913–17 |
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| Ismael Montes president, for his second term in office. Increasingly, tin was outstripping silver and other products as Bolivia's main export. | 1 |
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| 1917, April 13 |
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| Bolivia severed relations with Germany but did not declare war. | 2 |
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| 1917–20 |
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| José Gutiérrez Guerra, president. | 3 |
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| 1920, Jan. 10 |
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| Bolivia became an original member of the League of Nations. | 4 |
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| March 16 |
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| In the Tacna-Arica dispute, Bolivia took the stand that neither Chile nor Peru was entitled to the provinces. The Bolivian government appealed to the League of Nations (Nov. 1) for access to the Pacific, but the effort failed. | 5 |
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| July 11 |
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| A coup d'état led to the overthrow of Gutiérrez Guerra. | 6 |
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