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1 jan 1800 ano - Las pizarras de tiza comenzaron a usarse en las escuelas alrededor del siglo XVIII
Adicionado na linha do tempo:
Historia de la Tecnología Educativa
By
Alejandro Matos
9 nov 2019
0
0
499
Data:
1 jan 1800 ano
Agora
~ 225 years ago
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