Egyptian abacus (14 h 39 m, 21 nov 2018 ano – 14 h 49 m, 1 jul 2019 ano)
Descrição:
The use of the abacus in ancient Egypt is mentioned by the Greek historian Herodotus, who writes that the manner of its usage by the Egyptians was opposite in direction when compared with the Greek method.Adicionado na linha do tempo:
Data:
14 h 39 m, 21 nov 2018 ano
14 h 49 m, 1 jul 2019 ano
~ 7 months