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21 ноя 250 г. до нашей эры - Eratosthenes
Добавлено на ленту времени:
Matematik historia
By
Jonas Blomqvist
11 окт 2017
0
0
587
Дата:
21 ноя 250 г. до нашей эры
Сейчас
~ 2278 г назад
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