1825 was a common year starting on Saturday (see link for calendar).

Events

• January 4 - King Ferdinand I of the Two Sicilies dies and is succeeded by his son Francis I of the Two Sicilies.
• February 9 - After no presidential candidate received a majority of electoral votes, the United States House of Representatives elects John Quincy Adams President of the United States.
• February 12 - The Creek cede the last of their lands in Georgia to the United States government, and migrate west
• March 4 - John Quincy Adams officially succeeds James Monroe as President of the United States.
• June 11 - The first cornerstone is laid for Fort Hamilton in New York City.
• July 6 - The Duke of Schleswig-Holstein-Sønderborg-Beck gains possession of Glücksburg and changes his title to Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg. The line of Schleswig-Holstein-Sonderburg-Glücksburg later became the Royal House of Greece, Denmark and Norway.
• July 30 - Malden Island discovered.
• August 6 - Bolivia gains independence from Peru as a republic with the instigation of Simón Bolívar
• September 27 - The world's first modern railway, the Stockton and Darlington Railway opens in England.
• October 26 - The Erie Canal opens - passage from Albany, New York to Lake Erie
• November 26 - At Union College in Schenectady, New York a group of college students form Kappa Alpha as the first college social fraternity (it was the first to combine aspects of secret Greek-letter societies, literary societies and formalized student social groups).
• December 1 - Alexander I of Russia dies and is succeeded by his younger brother Nicholas I of Russia.

• Decembrist Revolt in Russia.
• Argentina assists Uruguayan revolt against Brazilian rule
• The first horse-drawn omnibuses established in London
• First roller skates
• Aluminium discovered
• The Moreton Bay Penal Settlement is moved from Redcliffe to a bend of the nearby Brisbane River, founding what would become the City of Brisbane.

Births

• January 25 - George Pickett, Confederate general († 1876)
• March 22 - Jane Sym, future First Lady of Canada († 1893)
• May 4 -Sir Thomas Henry Huxley, English biologist († 1895)
• May 8 - George Bruce Malleson, Indian officer and author († 1898)
• September 11 - Eduard Hanslick, music critic († 1904)
• September 25 - Joachim Heer, Swiss politician († 1879)
• October 25 - Johann Strauss II, composer († 1899)
• November 9 - A.P. Hill, Confederate general († 1865)
• December 2 - Emperor Peter II of Brazil

Deaths

• January 4 - Ferdinand I of the Two Sicilies (b. 1751)
• May 7 - Antonio Salieri, Italian composer (b. 1750)
• May 19 - Claude Henri de Rouvroy, Comte de Saint-Simon, founder of French socialism (b. 1760)
• November 14 - Jean Paul, German writer (b. 1763)
• December 1 - Alexander I of Russia (b. 1777)
• December 29 - Jacques-Louis David, French painter (b. 1748)
• Henri Boulard , book collector (b. 1754)