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1 gen 1841 anni - The chalkboard was introduced into the classroom.

Descrizione:

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

Aggiunto al nastro di tempo:

A Brief History of Educational Technology

18 set 2017

0

0

832

Data:

1 gen 1841 anni

Adesso

~ 184 years ago

Immagini:

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