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5 mayo 1841 año - Blackboard

Descripción:

Introduction of the blackboard was difficult at first just like today's new technology. But it soon was featured in all classrooms and is still used today.

Añadido al timeline:

Educational Timeline

Bymolly
4 dic 2017

fecha:

5 mayo 1841 año
Ahora mismo
~ 183 years ago
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