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31 дек 1929 г. - Production Statistic

Описание:

By 1930, it was estimated that it only took 15-20 labour hours to produce 100 bushels of wheat. 60% less than what it had taken in 1890s.

Добавлено на ленту времени:

Modern History Timeline HSC

ByBrianna Johnson
30 апр 2019
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Дата:

31 дек 1929 г.
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~ 94 г назад
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