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Hace 1 día · The ice shelves of Antarctica were probably first seen in 1820, during a Russian expedition led by Fabian Gottlieb von Bellingshausen and Mikhail Lazarev. The decades that followed saw further exploration by French, American, and British expeditions. The first confirmed landing was by a Norwegian team in 1895.
- 14,200,000 km², 5,500,000 sq mi
- <0.01/km², <0.03/sq mi
- 1,000 to 5,000 (seasonal)
- .aq
Hace 2 días · Beethoven's status was confirmed by the series of Concerts sprituels given in Vienna by the choirmaster Franz Xaver Gebauer in the 1819/1820 and 1820/1821 seasons, during which all eight of his symphonies to date, plus the oratorio Christus and the Mass in C, were performed.
- 17 December 1770
- 26 March 1827 (aged 56), Vienna
Hace 4 días · Babbage was instrumental in founding the Royal Astronomical Society in 1820, initially known as the Astronomical Society of London. Its original aims were to reduce astronomical calculations to a more standard form, and to circulate data.
Hace 1 día · First practical means of collecting energy from the Sun and turning it into a current of electricity. 1955: The hovercraft is patented by Christopher Cockerell. 1955: The intermodal container is developed by Malcom McLean. 1957: The laser and optical amplifier are invented and named by Gordon Gould and Charles Townes.
Hace 3 días · In 1820, liberal Spaniards successfully revolted, demanding a Constitution, which influenced the development of a similar movement in Italy.
Hace 4 días · In 1820, Spain abolished the slave trade, hurting the Cuban economy even more and forcing planters to buy more expensive, illegal, and "troublesome" slaves (as demonstrated by the slave rebellion on the Spanish ship Amistad in 1839). Reformism, annexation, and independence (1800–1898)
Hace 2 días · As with many enslaved people in the United States, neither the exact year nor place of Tubman's birth is known. Tubman reported the year of her birth as 1825, while her death certificate lists 1815 and her gravestone lists 1820.
