// todo need optimize like in event.jsp. Add indexing or not indexing this page. Origem do alfabeto e do ábaco (1 ene 2501 año aC – 31 dic 2000 año aC) (Cinta de tiempo)
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Origem do alfabeto e do ábaco (1 ene 2501 año aC – 31 dic 2000 año aC)

Descripción:

Aparelho muito simples formado por uma placa de
argila onde se escreviam algarismos que auxiliavam
nos cálculos

Añadido al timeline:

Historia da tecnologia

ByMarcelo
21 oct 2018

fecha:

1 ene 2501 año aC
31 dic 2000 año aC
~ 500 years
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