1 янв 1620 г. - Pasca Line
Описание:
Pascal's calculator is a mechanical calculator invented by Blaise Pascal in the early 17th century. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as supervisor of taxes in Rouen.Добавлено на ленту времени:
Дата:
1 янв 1620 г.
Сейчас
~ 406 г назад