The 1800s (pronounced "eighteen-hundreds") was a decade of the Gregorian calendar that began on January 1, 1800, and ended on December 31, 1809. The term "eighteen-hundreds" can also mean the entire century from January 1, 1800 to December 31, 1899 (the years beginning with "18"), and is almost synonymous with the 19th century (1801–1900). This article refers to the decade comprising 1800–1809. The decade was a period of drastic change. The advancements of the previous three decades towards the end of the 18th century had propelled the Industrial Revolution into a global movement, with entire wars fought with the newly developed technologies – creating an impetus to imperialist campaigns across Africa and Asia, as well as the counter-movement on Latin America later on. Politics and wars Napoleonic Wars The European political landscape was dominated by the Napoleonic Wars, a series of conflicts declared against Napoleon's First French Empire and changing sets of European allies by opposing coalitions that ran from 1803 to 1815. As a continuation of the wars sparked by the French Revolution of 1789, they revolutionized European armies and played out on an unprecedented scale, mainly due to the application of modern mass conscription. French power rose quickly, conquering most of Europe by the end of the decade. The decade brought hard times. On 9 November 1799 (18 Brumaire), Napoleon overthrew the French government, replacing it with the Consulate, in which he was First Consul. On 2 December 1804, after a failed assassination plot, he crowned himself Emperor. In 1805, Napoleon planned to invade Britain, but a renewed British alliance with Russia and Austria (Third Coalition), forced him to turn his attention towards the continent, while at the same time failure to lure the superior British fleet away from the English Channel, ending in a decisive French defeat at the Battle of Trafalgar (in this battle, British Admiral Horatio Nelson was fatally wounded) on 21 October put an end to hopes of an invasion of Britain. On 2 December 1805, Napoleon defeated a numerically superior Austro-Russian army at Austerlitz, forcing Austria's withdrawal from the coalition (see Treaty of Pressburg) and dissolving the Holy Roman Empire. In 1806, a Fourth Coalition was set up, on 14 October Napoleon defeated the Prussians at the Battle of Jena-Auerstedt, marched through Germany and defeated the Russians on 14 June 1807 at Friedland. The Treaties of Tilsit divided Europe between France and Russia