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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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22 jan 1651 ano - George Philip Harsdorffer creó una tablilla de cera para que escribiesen los invidentes;
Adicionado na linha do tempo:
Marco historico de la educación especial
By
Homero Villafuerte
16 dez 2017
0
0
750
Data:
22 jan 1651 ano
Agora
~ 374 years ago
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