January 8 is the eighth day of the year in the Gregorian calendar. 357 days (358 in leap years) remain in the year after this day.
307 - Yin Huaidi becomes Chinese emperor, inheriting the crown from his father, Yin Huidi.
871 - Battle of Ashdown - English King Ethelwulf of Wessex defeats the Danish army.
1089 - Pope Clement III issues a papal bull (charter) in Rome establishing a single ecclesiastical province for Duklja. In this way, the Diocese of Bar was elevated to the rank of archdiocese. It included: Duklja, Bar, Kotor, Ulcinj, Svačka, Skadar, Drivat, Pilot, Serbian, Bosnian and Trebinje church districts. The bull of Clement III, the Archbishop of Duklja and Bar, confirmed the metropolitan rights. The establishment of the Archdiocese of Bar was, at the same time, the last great political success of King Bodin of Duklja.
1297 - Italian nobleman Francesco Grimaldi establishes the Grimaldi dynasty in Monaco, which is still in power today. Disguised as a monk, Grimaldi secretly entered the fortress of Monaco, which was under the rule of Genoa, and then let his soldiers inside and occupied the fortress. As Reni I ruled until his death in 1314.
1679 - French explorer Robert Cavelia de la Salle discovers Niagara Falls.
1806 - Battle of Blauberg: Conflict breaks out between British and Dutch troops, where the British take over a colony in southern Africa from the Dutch.
1807 - The first Serbian uprising: Serbian insurgents expel the Turks from the Kalemegdan Fortress and after 380 years, Belgrade again becomes the capital of the Serbian state. Earlier, on December 12, 1806, the insurgents liberated the city of Belgrade and pushed the Turks into the Kalemegdan Fortress, and the Turkish commander Alija Gusanac fled the fortress at the end of December, realizing that its defense was hopeless. The only thing left for the new commander, Suleiman Pasha, was to surrender with his forces to the insurgents under Karadjordj's leadership.
1815 - Battle of New Orleans: US Army led by General Andrew Jackson defeats the British Army during the US-British War.
1863 - American Civil War: Second Battle of Springfield.
1877 - American-Indian Wars: The last battle on Mount Wolf in Montana, between the US Army and Indians led by Crazy Horse, where