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Marzo. 16 de marzo: Luis José de Chorroarín inaugura la primera biblioteca pública de Buenos Aires, en la actual Argentina. 16 de marzo al 6 de abril: en España, el ejército angloportugués asedia a los franceses en la Batalla de Badajoz. 19 de marzo: en Cádiz se promulga la Constitución española de 1812.
1812: Ignacio Comonfort, presidente mexicano (f. 1863). 1815: Louis Jules Trochu, militar y político francés (f. 1896). 1824: Gustav Kirchhoff, físico alemán (f. 1887). 1825: August Manns, director de orquesta alemán (f. 1907). 1835: Simon Newcomb, astrónomo y matemático estadounidense (f. 1909).
The War of 1812 was fought by the United States and its allies against the United Kingdom and its allies in North America. It began when the United States declared war on Britain on 18 June 1812.
- 18 June 1812 – 17 February 1815, (2 years, 7 months, 4 weeks and 2 days)
- Inconclusive
By 1812, Fraunhofer had succeeded in creating an achromatic objective lens 190 mm (7.5 in) in diameter. The size of this primary lens is the main factor in determining the light gathering ability and resolution of a refracting telescope .
t. e. Mars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron (III) oxide dust, giving it the nickname " the Red Planet ". [21] [22] Mars is among the brightest objects in Earth's sky and its high-contrast albedo features have made it a common subject for telescope viewing.
- 24.07 km/s, (86700 km/h; 53800 mph)
- 1.025957 d, 24ʰ 37ᵐ 22.7ˢ
- 241 m/s, (870 km/h; 540 mph)
The Constitution was ratified on 19 March 1812 by the Cortes of Cádiz, the first Spanish legislature that included delegates from the entire nation and its possessions, including Spanish America and the Philippines. "It defined Spanish and Spanish American liberalism for the early 19th century." [3]
The Treaty of Paris of 14 March 1812 created an alliance between the Austrian Empire and the French Empire against the Russian Empire. Austria pledged to provide an auxiliary corps of 30,000 troops under the command of the French emperor, Napoleon Bonaparte, in the event of a war with Russia.
