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28 dez 1890 ano - School Slate and Chalkboard

Descrição:

Used for over 100 years, the schools late helped students work and rework problems. Chalkboards are still going strong till this day. You can find them in almost every classroom.

Adicionado na linha do tempo:

Data:

28 dez 1890 ano
Agora
~ 134 years ago

Imagens: