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April 1, 2024
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1 janv. 1939 - Closed circuit television was first used for learning in Los Angeles public schools and at the State University of Iowa.

Description:

By Wags05 at English Wikipedia (Own work) [Public domain], via Wikimedia Commons

Ajouté au bande de temps:

Date:

1 janv. 1939
Maintenaint
~ Il y a 85 ans

Les images: