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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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13 mayo 1940 año - Mimeograph
Descripción:
Hand-cranked copies helped teachers spread homework to the entire class.
Añadido al timeline:
Educational Technology
By
Dayanira Feliciano
14 nov 2017
0
0
494
fecha:
13 mayo 1940 año
Ahora mismo
~ 85 years ago
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