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Hace 2 días · 1st century AD: The aeolipile, a simple steam turbine is recorded by Hero of Alexandria. [263] 1st century AD: The first use of respiratory protective equipment is documented by Pliny the Elder ( c. 23 AD –79) using animal bladder skins to protect workers in Roman mines from red lead oxide dust.
Hace 3 días · 1820: Discovery of Antarctica. 1820: Liberia founded by the American Colonization Society for freed American slaves. 1820: Dissolution of the Maratha Empire. 1821–1823: First Mexican Empire, as Mexico's first post-independence government, ruled by Emperor Agustín I of Mexico.
Hace 6 días · On 27 or 28 January 1820, at a point within 32 km (20 mi) of Princess Martha Coast, they recorded the presence of the Fimbul Ice Shelf at Meanwhile, on 30 January 1820, Irishman Edward Bransfield sighted Trinity Peninsula , the northernmost point of the Antarctic mainland.
Hace 1 día · In the early months of the American Revolution, the first regular U.S. fighting force, the Continental Army, was organized by the Second Continental Congress on June 14, 1775. It comprised the 22,000 militia troops then besieging Boston and an additional 5,000 militiamen in New York. It was placed under the control of a five-member civilian ...
Hace 4 días · Until 1932 the South remained an impoverished and undiversified region. The growth of a textile industry in the Carolinas and the movement to develop a “New South” after the Civil War had not seriously qualified the region’s commitment to cotton, to agriculture, and to a rural way of life.
Hace 5 días · ACS06AD18-20SW(025) : available at OnlineComponents.com. Datasheets, competitive pricing, flat rate shipping & secure online ordering.
Hace 5 días · AA1820 Flight Tracker - Track the real-time flight status of American Airlines AA 1820 live using the FlightStats Global Flight Tracker. See if your flight has been delayed or cancelled and track the live position on a map.
