1800s
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The 1800s refers to the decade from 1800 to 1809 in the Gregorian calendar system. This period matters because it marks the beginning of the 19th century, a transformative era that witnessed major developments in industrialization, politics, and culture across the world.
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From top left, clockwise: Napoleon Bonaparte is crowned Emperor of the French Empire and embarked on trans-European conquests, which would later on be best known as the Napoleonic Wars – a conflict that forever transformed European politics, and gave rise to the global struggle for hegemony; Ceres was discovered, proving the existence of an asteroid belt between the Solar System's inner and outer planets; Inventor Isaac de Rivas created a hydrogen gas-powered vehicle, an inception to automotive engineering and internal combustion engines; - The Louisiana Purchase was made, singlehandedly expanding the United States of America in a scale larger than ever; to this day the purchase is still viewed as one of the largest expansions within North America to date; Symington's Charlotte Dundas became the world's first functioning steamboat; Haiti declares independence in 1804, becoming the world's first black-led republic and the first independent Caribbean state, with its victory marking the world's arguably only successful slave revolution in history; Morphine is successfully isolated from opium and is produced for the first time as a separate medicinal product in 1804; Francis II abdicates in 1806, thus dissolving the Holy Roman Empire.