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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
By
Brianna Johnson
30 апр 2019
0
0
579
Дата:
31 дек 1929 г.
Сейчас
~ 94 г назад
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