1879January 1 – The Specie Resumption Act takes effect. The United States Note is valued the same as gold, for the first time since the American Civil War. January 11 – The Anglo-Zulu War begins. January 22 – Anglo-Zulu War – Battle of Isandlwana: A force of 1,200 British soldiers is wiped out by over 20,000 Zulu warriors. January 23 – Anglo-Zulu War – Battle of Rorke's Drift: Following the previous day's defeat, a smaller British force of 140 successfully repels an attack by 4,000 Zulus.
1881January 1–24 – Siege of Geok Tepe: Russian troops under General Mikhail Skobelev defeat the Turkomans. January 13 – War of the Pacific – Battle of San Juan and Chorrillos: The Chilean army defeats Peruvian forces. January 15 – War of the Pacific – Battle of Miraflores: The Chileans take Lima, capital of Peru, after defeating its second line of defense in Miraflores.
1891January 1 A strike of 500 Hungarian steel workers occurs; 3,000 men are out of work as a consequence. Germany takes formal possession of its new African territories. January 4 – The Earl of Zetland issues a declaration regarding the famine in the western counties of Ireland. January 5 The Australian shearers' strike, that leads indirectly to the foundation of the Australian Labor Party, begins. A fight between the United States and Indians breaks out near Pine Ridge agency.
1889January 1 The total solar eclipse of January 1, 1889 is seen over parts of California and Nevada. Paiute spiritual leader Wovoka experiences a vision, leading to the start of the Ghost Dance movement in the Dakotas. January 4 – An Act to Regulate Appointments in the Marine Hospital Service of the United States is signed by President Grover Cleveland. It establishes a Commissioned Corps of officers, as a predecessor to the modern-day U.S. Public Health Service Commissioned Corps. January 5 – Preston North End F.
1875January 1 – The Midland Railway of England abolishes the Second Class passenger category, leaving First Class and Third Class. Other British railway companies follow Midland's lead during the rest of the year (Third Class is renamed Second Class in 1956). January 5 – The Palais Garnier, one of the most famous opera houses in the world, is inaugurated as the home of the Paris Opera. January 12 – Guangxu becomes the 11th Qing dynasty Emperor of China at the age of 3, in succession to his cousin.
1867January 1 – The Covington–Cincinnati Suspension Bridge opens between Cincinnati, Ohio, and Covington, Kentucky, in the United States, becoming the longest single-span bridge in the world. It was renamed after its designer, John A. Roebling, in 1983. January 8 – African-American men are granted the right to vote in the District of Columbia. January 11 – Benito Juárez becomes Mexican president again. January 15 – London Skating Disaster where 40 people died when the ice broke.