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17 ноя 1135 г. - Монах Кирик написал первую работу по математике
Добавлено на ленту времени:
History of science in Russia
By
Andrew Miandin
14 дек 2017
0
0
590
Дата:
17 ноя 1135 г.
Сейчас
~ 890 г назад
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