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30 ноя 1923 г. - Haaren High School in New York City became the first public school to use the radio in classroom teaching.
Добавлено на ленту времени:
18 окт 2018
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laurens timeline ed tech
ed tech 10-17-18
Дата:
30 ноя 1923 г.
Сейчас
~ 100 г назад