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14 gen 1901 anni - пересмотрена программа Кайгородова, в школы вводят программу профессора В.М Шимкевича, в основу которой положены идеи А.Я. Герда. Предмет стал называться «Природоведение».

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ByАнна Панфилова
15 ott 2017
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14 gen 1901 anni
Adesso
~ 124 years ago
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