February 3 – Vendsyssel-Thy, once part of the Jutland peninsula forming westernmost Denmark, becomes an island after a flood drowns its 1 kilometre (0.62 mi) wide isthmus.[1]
March 1 – The outbound British East IndiamanKent is destroyed by fire in the Bay of Biscay with the loss of more than 80 lives, but over 550 are saved by passing ships.
April 17 – Charles X of France recognizes Haiti, 21 years after it expelled the French following the successful Haitian Revolution, and demands the payment of 150 million gold francs, 30 million of which Haiti must finance through France itself, as down payment.
June 2 – The United States Senate ratifies the treaties with the Great Osage and the Little Osage tribes.[4]
June 3 – The U.S. Senate ratifies the treaty with the Kansas tribe.[4]
June 9 – The U.S. Senate ratifies the treaty with the Poncas tribe.[4]
June 15 – A rebellion is started by 200 slaves in the Guamacaro region of Cuba, and is suppressed after 12 hours; in the ensuing months, most who were not killed in the battle will be hunted down and killed.[5]
August 18 – Scottish adventurer Gregor MacGregor issues a £300,000 loan with 2.5% interest, through the London bank of Thomas Jenkins & Company, for the fictitious Central American republic of Poyais. His actions led to the Panic of 1825, the first modern stock market crash, in England.[citation needed]
^Blangstrup, Chr., ed. (1915). "Aggerkanal". Salmonsens Konversationsleksikon (in Danish). Vol. 1 (2nd ed.). Copenhagen: J.H. Schultz Forlagsboghandel. p. 310. Retrieved April 3, 2013.
^"Treaty With The Creeks, 1825", Oklahoma State University Digital Collections, Kapplers: Indian affairs: laws and treaties Vol. 2 (Treaties), pp. 214-217. Retrieved May 16, 2024.
^Manuel Barcia, West African Warfare in Bahia and Cuba: Soldier Slaves in the Atlantic World, 1807-1844 (Oxford University Press, 2014) p97
^Danish: Den 6te Julii har det behaget Hs. Majestæt allernaadigst at tillade Hs. høifyrstelige Durchlauchtighed, Hertug Friederich Wilhelm Paul Leopold til Slesvig-Holsten-Sønderburg Beck, for sig og hans samtlige ægte Descendentere, tillige at føre det Hertugelige Navn og Titel som Hertug af Glücksburg."Blandede Efterretninger"(PDF). Collegial-Tidende. No. 39. Copenhagen. 16 July 1825. p. 526.
^Haverkamp, Frode; Gude, Hans Fredrik (1992). Hans Gude (in Norwegian). Oslo: Aschehoug. p. 59. ISBN 82-03-17072-2. OCLC29047091.
^García Belaúnde, Víctor Andrés (2016). El expediente Prado (in Spanish). Lima: Asociación Civil Mercurio Peruano. p. 451. ISBN 978-612-45288-6-6.
^Basadre, Jorge (2005) [First published 1939]. Historia de la República del Perú (1822 - 1933) [History of the Republic of Peru (1822 - 1933)] (in Spanish). Vol. 1 (9th ed.). Lima: El Comercio. p. 98. ISBN 978-612-306-354-2.