Dom Carlos I, King of Portugal (and ruler and conqueror of many other places which he lists), personally signed a one-page letter, in Portuguese, to Sanford B. Dole, dated December 17, 1894, recognizing the Republic of Hawaii. The date is written out in words at the end of the letter just above his signature. No English translation survives.
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This article is being preserved at the internet archive for educational purposes.
See the original article at: https://historymystery.kenconklin.org/2008/04/06/recognition-of-the-republic-of-hawaii-portugal/