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Azul índigo: el color que eligió Manuel Belgrano para una de sus primeras banderas

20 junio, 2019

Investigadores del Conicet de la ciudad La Plata revelaron el color original de la denominada Bandera de Macha, una de las dos que dejó ocultas en el actual territorio de Bolivia, el Ejército Auxiliar del Alto Perú al mando del general Manuel Belgrano luego de las derrotas en las batallas de Vilcapugio y Ayohuma de 1813.

Los investigadores analizaron la composición química y determinaron el origen del colorante usado.

Los resultados de los estudios espectroscópicos y químicos se publicarón en la revista ACS Omega y deducen que el pabellón que se conserva hoy en la Casa de la Libertad de la ciudad boliviana de Sucre tenía dos franjas horizontales blancas y una central de color azul índigo.

Este trabajo se encuadra en la nueva rama denominada espectrohistoria, que ayuda a desentrañar controversias de carácter histórico en base al rigor científico, y cuenta con un antecedente reciente cuando en 2017 el mismo equipo de expertos en colaboración con colegas de Brasil pudo establecer que la bandera ordenada en 1814 por Bernabé Aráoz, primer gobernador intendente de Tucumán y síndico del Templo de San Francisco de esa provincia, era blanca y azul de ultramar.

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