۱۹۲۰ – بر پایهٔ مفاد پیمان سوالبارد، در سیاست بینالملل، حاکمیت نروژ بر مجمعالجزایر سوالبار در قطب شمال را به رسمیت شناخت و آن را یک منطقهٔ غیرنظامی اعلام کرد.
↑Hough, Franklin Benjamin (1872). American Constitutions. Albany: Weed, Parsons, & Company. p. 10. References to a 1778 Virginia ratification are based on an error in the Journals of Congress: "The published Journals of Congress print this enabling act of the Virginia assembly under date of Dec. 15, 1778. This error has come from the MS. vol. 9 (History of Confederation), p. 123, Papers of the Continental Congress, Library of Congress." Dyer, Albion M. (2008) [1911]. First Ownership of Ohio Lands. Baltimore: Genealogical Publishing Company. p. 10. ISBN978-0-8063-0098-6.
↑S. Sariola, "Prohibition in Finland, 1919–1932; its background and consequences," Quarterly Journal of Studies in Alcohol (Sep. 1954) 15(3) pp. 477–90
↑Smith, Bonnie G., ed. (2008). The Oxford Encyclopedia of Women in World History. Vol. 1. Oxford: Oxford University Press. p. 637. ISBN978-0-19514-890-9.
↑Kändler, Tiit (2002). A Hundred Great Estonians of the 20th Century. Translated by Lengi-Cooper, Küllike. Tallinn: Estonian Encyclopaedia Publishers. p. 52. ISBN978-9-98570-103-4.
↑Turner, Barry (2015). The statesman's yearbook 2016: the politics, cultures and economies of the world. Basingstoke: Palgrave MacMillan. p. 109. ISBN9781349578238.