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20 dez 1917 ano - Декларация "О дошкольном воспитании"
Adicionado na linha do tempo:
Хронология развития детских образовательных программ в России
By
Мария Заборовская
10 nov 2019
0
0
325
Data:
20 dez 1917 ano
Agora
~ 106 years ago
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