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Há 2 dias · 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.
Há 1 dia · In 1820, liberal Spaniards successfully revolted, demanding a Constitution, which influenced the development of a similar movement in Italy. Inspired by the Spaniards, a regiment in the army of the Kingdom of Two Sicilies , commanded by Guglielmo Pepe , a Carbonaro (member of the secret republican organization), [35] mutinied, conquering the ...
Há 1 dia · The Qing dynasty in c. 1820, with provinces in yellow, military governorates and protectorates in light yellow, tributary states in orange Official map of the Qing Empire published in 1905.
Há 1 dia · The American Civil War (April 12, 1861 – May 26, 1865; also known by other names) was a civil war in the United States between the Union [e] ("the North") and the Confederacy ("the South"). The Confederacy had been formed by states that had seceded from the Union. The central conflict leading to the war was the dispute over whether slavery ...
Há 3 dias · Although the nullification of 1820 in Ohio was inspired by resolutions passed in Virginia and Kentucky in 1798 and 1800, the language of their resolution from 1820 would find its place in South Carolina's nullification of 1832 and secession articles of southern states in 1861.
Há 5 dias · 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.
Há 3 dias · During the 1983–2005 Second Sudanese Civil War, people were taken into slavery. [12] Evidence emerged in the late 1990s of systematic child slavery and trafficking on cacao plantations in West Africa. [13] Slavery in the 21st century continues and generates an estimated $150 billion in annual profits. [14]
