Dashed left edge = started before this timeline ·
Dashed right edge = still ongoing
Events in the 1840s 22
1760 – 1842Luigi CherubiniClassical opera composerItalian composer based in Paris, known for his operas and sacred music. Beethoven considered him the greatest living composer.
1782 – 1840Niccolò PaganiniViolin virtuoso & composerItalian violinist and composer whose dazzling technique revolutionised violin playing. His 24 Caprices remain among the most challenging violin works ever written.
1797 – 1848Gaetano DonizettiItalian bel canto opera composerItalian composer of over 70 operas including Lucia di Lammermoor and L'elisir d'amore, a pillar of the bel canto tradition.
1809 – 1849Edgar Allan PoeAmerican writer and poetPoe pioneered horror and detective fiction, creating psychologically intense and Gothic narratives.
1809 – 1847Felix MendelssohnRomantic composer & conductorGerman Romantic composer who rediscovered Bach, wrote the famous Wedding March and composed the Violin Concerto and Italian Symphony.
1810 – 1849Frédéric ChopinRomantic piano poetPolish-French composer who wrote almost exclusively for the piano. His nocturnes, études, ballades and mazurkas define Romantic piano music.
1820 – 1840Antarctica confirmed as a continentThe seventh continent discovered by three expeditionsBetween 1820 and 1840, Russian, British, and American expeditions independently confirmed the existence of a massive continental landmass at the South Pole. Fabian von Bellingshausen, Edward Bransfield, and Nathaniel Palmer all sighted the Antarctic coast in 1820. The continent was confirmed by the Wilkes Expedition in 1840, completing the map of the Earth's major landmasses.
1839 – 1842First Opium WarBritain forces China to open — the century of humiliation beginsBritain went to war with China to force it to continue accepting opium imports from British India, which China had banned. The technologically superior British fleet defeated China decisively. The 1842 Treaty of Nanking ceded Hong Kong to Britain, opened five treaty ports, and paid a massive indemnity. It was the first of the "unequal treaties" that humiliated China and began what Chinese call the "century of humiliation" lasting until 1949.
1840 – 1902Emile ZolaFrench novelistZola led the Naturalist movement, depicting social conditions with scientific realism and political critique.
1840 – 1893Pyotr Ilyich TchaikovskyRussian Romantic composerRussian composer whose Swan Lake, Nutcracker, Sleeping Beauty ballets and 1812 Overture are among the most beloved works in classical music.
1840 – 1926Claude MonetImpressionism · FranceClaude Monet (November 14, 1840 – December 5, 1926) was the founder of French Impressionism, whose series paintings of haystacks, Rouen Cathedral and water lilies are among the most beloved works in art history.
1841 – 1919Pierre-Auguste RenoirImpressionism · FrancePierre-Auguste Renoir (February 25, 1841 – December 3, 1919) was a French Impressionist painter whose warm, sensuous depictions of leisure and pleasure are among the most joyful in art history.
1841 – 1904Antonín DvořákCzech Romantic composerCzech composer best known for his New World Symphony, Cello Concerto and Slavonic Dances. He drew on folk music to create a distinctly Czech voice.
1842 – 1846Anesthesia in surgeryOperations become painless — modern surgery beginsIn 1842-1846, Crawford Long, Horace Wells, and William Morton independently demonstrated the use of ether and nitrous oxide as surgical anesthetics. Morton's public demonstration at Massachusetts General Hospital on 16 October 1846 is considered the birth of modern anesthesia. Surgery was transformed from a terrifying, often fatal ordeal into a controlled medical procedure.
1843 – 1907Edvard GriegNorwegian national composerNorwegian composer whose Piano Concerto and Peer Gynt Suite made him the most celebrated Scandinavian composer of the 19th century.
1844 – 1908Pablo de SarasateSpanish violin virtuosoSpanish violinist and composer whose Carmen Fantasy and Zigeunerweisen remain showpieces for every great violinist.
1844 – 1900Friedrich NietzscheGerman philosopherNietzsche challenged morality and religion, influencing existentialism and modern philosophy.
1846Neptune discovered by mathematical predictionAn invisible planet found by pure calculationIn 1846, Johann Galle of Berlin observed Neptune exactly where Urbain Le Verrier of France had predicted it must lie, based entirely on mathematical analysis of perturbations in Uranus's orbit. It was the first planet discovered by prediction rather than observation, a triumph of Newtonian mechanics. John Adams of England had independently made the same prediction months earlier.
1847 – 1912Bram StokerIrish novelistStoker wrote Dracula, defining modern vampire fiction and Gothic horror literature.
1848 – 1849German Revolutions of 1848Liberal and nationalist uprisingsRevolutionary movements across the German states demanded constitutional government and national unification.
1848 – 1903Paul GauguinPost-Impressionism · FrancePaul Gauguin (June 7, 1848 – May 8, 1903) was a French Post-Impressionist who left Europe for Tahiti, seeking a more primal authenticity. His bold colour and flat forms influenced Fauvism, Expressionism and Primitivism.
1849 – 1944Bertha BenzThe investor who was not allowed to be oneBertha Ringer put her dowry into Carl Benz's failing workshop in 1870, while still unmarried and therefore still legally able to invest. On marrying him in 1872 she lost that standing under the law of Baden, and continued funding him anyway. She wound ignition coils, argued down the doubters, and in August 1888 took the Patent-Motorwagen and her two sons on an unauthorised hundred-kilometre drive that invented the brake lining, exposed the need for a lower gear, and turned an unsellable curiosity into a product. She was ninety-five when she died, and still driving into old age.