15 янв 1890 г. - School Slate and Chalkboard
Описание:
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.Добавлено на ленту времени:
Дата:
15 янв 1890 г.
Сейчас
~ 135 г назад