24 sept. 1841 - Chalkboard Introduced
Description:
Schools had been utilizing individual slates since early 1800s, but the chalkboard was introduced in 1841. However, it took a couple of years for teachers to learn how to integrate it into the classroom.Ajouté au bande de temps:
Date:
24 sept. 1841
Maintenaint
~ Il y a 184 ans