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23 июл 1957 г. - 1957 The launch of Sputnik further invigorates the push for the instruction of math and science enrichment.

Добавлено на ленту времени:

Gifted Recognition

ByTricia Amedy
31 авг 2018

Дата:

23 июл 1957 г.
Сейчас
~ 66 г назад
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