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| 1919, April 11 |
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| Geneva was chosen as the seat of the League of Nations. The Swiss, though long interested in international collaboration, were nevertheless primarily concerned with maintenance of their neutrality, and were anxious to avoid dangerous commitments. | 1 |
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| April 11 |
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| The people of Vorarlberg voted by a large majority for union with Switzerland, but the federal government ignored the opportunity to extend the confederation. | 2 |
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| June 28 |
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| In the Treaty of Versailles the powers recognized the perpetual neutrality of Switzerland, while the Swiss gave up their treaty right to occupy northern Savoy in the event of war (this right or obligation had not been exercised). The intricate problem of the free zones of Upper Savoy and Gex, so important for the defense of Geneva, was left to direct Franco-Swiss negotiations. | 3 |
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| Nov. 19 |
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| The Swiss parliament voted to join the League of Nations, but the federal government first secured from the League council the declaration of London. | 4 |
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