21
/fr/
fr
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
1955958
161470
2

7 jan 1841 ans - Blackboard was introduced

Description:

There were already personal blackboards for each student, but it wasn't until 1841 that a black was placed in front of the class for everyone to see.

Ajouté au bande de temps:

il y a 8 mois
0
0
52
Education Timeline project

Date:

7 jan 1841 ans
Maintenaint
~ 178 years ago
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