1847January 4 – Samuel Colt sells his first revolver pistol to the U.S. government. January 13 – The Treaty of Cahuenga ends fighting in the Mexican–American War in California. January 16 – John C. Frémont is appointed Governor of the new California Territory. January 17 – St. Anthony Hall fraternity is founded at Columbia University, New York City. January 30 – Yerba Buena, California, is renamed San Francisco.
1915Below, the events of World War I have the "WWI" prefix. January 1915 January – British physicist Sir Joseph Larmor publishes his observations on "The Influence of Local Atmospheric Cooling on Astronomical Refraction". January 1 WWI: British Royal Navy battleship HMS Formidable is sunk off Lyme Regis, Dorset, England, by an Imperial German Navy U-boat, with the loss of 547 crew. Battle of Broken Hill: A train ambush near Broken Hill, Australia, is carried out by two men (claiming to be in support of the Ottoman Empire) who are killed, together with four civilians.
1860January 2 – The discovery of a hypothetical planet Vulcan is announced at a meeting of the French Academy of Sciences in Paris, France. January 10 – The Pemberton Mill in Lawrence, Massachusetts collapses, killing 146 workers. January 13 – Battle of Tétouan, Morocco: Spanish troops under General Leopoldo O'Donnell, 1st Duke of Tetuan defeat the Moroccan Army. January 20 – Camillo Benso, Count of Cavour is recalled as Prime Minister of Piedmont-Sardinia.
April 4503 BC – Roman consul Agrippa Menenius Lanatus celebrates a triumph for a military victory over the Sabines. 190 – Dong Zhuo has his troops evacuate the capital Luoyang and burn it to the ground. 611 – Maya king Uneh Chan of Calakmul sacks rival city-state Palenque in southern Mexico. 801 – King Louis the Pious captures Barcelona from the Moors after a siege of several months. 1268 – A five-year Byzantine–Venetian peace treaty is concluded between Venetian envoys and Emperor Michael VIII Palaiologos.
1841January 20 – Charles Elliot of the United Kingdom, and Qishan of the Qing dynasty, agree to the Convention of Chuenpi. January 26 – Britain occupies Hong Kong. Later in the year, the first census of the island records a population of about 7,500. January 27 – The active volcano Mount Erebus in Antarctica is discovered, and named by James Clark Ross. January 28 – Ross discovers the "Victoria Barrier", later known as the Ross Ice Shelf. On the same voyage, he discovers the Ross Sea, Victoria Land and Mount Terror.
1840January 3 – One of the predecessor papers of the Herald Sun of Melbourne, Australia, The Port Phillip Herald, is founded. January 10 – Uniform Penny Post is introduced in the United Kingdom. January 13 – The steamship Lexington burns and sinks in icy waters, four miles off the coast of Long Island; 139 die, only four survive. January 19 – Captain Charles Wilkes' United States Exploring Expedition sights what becomes known as Wilkes Land in the southeast quadrant of Antarctica, claiming it for the United States, and providing evidence that Antarctica is a complete continent.
1994The year 1994 was designated as the "International Year of the Family" and the "International Year of Sport and the Olympic Ideal" by the United Nations. In Line Islands and Phoenix Islands, this year has only 364 days as Saturday, December 31 was skipped when 1995 began after Friday, December 30. That means aligning the rest of Kiribati within its capital Tarawa by redrawing the international date line on its territorial boundaries. January 1 – The North American Free Trade Agreement (NAFTA) is established.
20102010 was designated as: International Year of Biodiversity International Year of Youth 2010 European Year for Combating Poverty and Social Exclusion International Year for the Rapprochement of Cultures There is a debate among experts and the general public on how to pronounce specific years of the 21st century in English. The year 2010 is pronounced either "twenty-ten" or "two thousand [and] ten". 2010 was the first year to have a wide variation in pronunciation, as the years 2000 to 2009 were generally pronounced "two thousand (and) one, two, three, etc.
1948January 1948 January 1 The General Agreement on Tariffs and Trade (GATT) is inaugurated. The Constitution of New Jersey (later subject to amendment) goes into effect. The railways of Britain are nationalized, to form British Railways. January 4 – Burma gains its independence from the United Kingdom, becoming an independent republic, named the 'Union of Burma', with Sao Shwe Thaik as its first President and U Nu its first Prime Minister. January 5 – In the United States: Warner Brothers shows the first color newsreel (Tournament of Roses Parade and the Rose Bowl Game).
1828January 4 – Jean Baptiste Gay, vicomte de Martignac succeeds the Comte de Villèle, as Prime Minister of France. January 8 – The Democratic Party of the United States is organized. January 22 – Arthur Wellesley, 1st Duke of Wellington succeeds Lord Goderich as Prime Minister of the United Kingdom. February 19 – The Boston Society for Medical Improvement is established in the United States. February 21 – The first American-Indian newspaper in the United States is published, named "Cherokee Phoenix".
