1 янв 1617 г. - Invention of Napier's Bones
Описание:
Following the abacus, John Napier, from Scotland, created a tool known as Napier's Bones. The tool could be used to solve both multiplication and division problems.Добавлено на ленту времени:
Дата:
1 янв 1617 г.
Сейчас
~ 407 г назад
