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Leonardo de Pisa, matemático de la República de Pisa (n. 1170), conocido como Fibonacci, la mayoría de las referencias indican su fallecimiento en 1240, no obstante haber sido declarado el más importante matemático de la Edad Media y como responsable de expandir al mundo la numeración indo arábiga y las series de Fibonacci. [.
- Años 1240
Fernando III, «el Santo», reconquista la ciudad de Cabra...
- Años 1240
May 24 – Duke Skule Bårdsson, claimant to the Norwegian throne, is defeated by King Haakon IV ( the Old) and his supporters. He seeks refuge in Elgeseter Priory in Trondheim, and Haakon burns down the monastery, in which Skule is burned alive. Haakon becomes the undisputed ruler; this ends the civil war era in Norway, after 110 years.
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Between 1951 and 1963, the frequency was also one of two used for the United States' CONELRAD emergency broadcasting system, the other frequency being 640 AM.
Llywelyn ab Iorwerth ( pronounced [ɬəˈwɛlɪn ab ˈjɔrwɛrθ], c. 1173 – 11 April 1240), [2] [3] also known as Llywelyn the Great ( Welsh: Llywelyn Fawr, [ɬəˈwɛlɪn vaʊ̯r] ), was a medieval Welsh ruler. He succeeded his uncle, Dafydd ab Owain Gwynedd, as King of Gwynedd in 1195. By a combination of war and diplomacy he dominated Wales for 45 years. [4]
April 9 – Battle of Legnica: The Mongols, under the command of Baidar, Kadan and Orda Khan, defeat the feudal Polish nobility, including the Knights Templar. [9] [10] April 11 – Battle of Mohi: Batu Khan and Subutai defeat Béla IV of Hungary. The battle is the last major event in the Mongol Invasion of Europe.
Años 1240. Temas, acontecimientos y noticias relacionados con la década de los años 1240 . Wikimedia Commons alberga una categoría multimedia sobre los años 1240.
