Egyptian abacus (14h 39min, nov 21, 2018 y – 14h 49min, jul 1, 2019 y)
Description:
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.Added to timeline:
Date:
14h 39min, nov 21, 2018 y
14h 49min, jul 1, 2019 y
~ 7 months