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1 janv. 1841 - The chalkboard was introduced into the classroom.

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By Tungsten (photo taken by Tungsten) [Public domain], via Wikimedia Commons

Ajouté au bande de temps:

A Brief History of Educational Technology

18 sept. 2017

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Date:

1 janv. 1841

Maintenaint

~ Il y a 184 ans

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