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ten-hour workday policy in 1840s (1 дек 1840 г. – 1 апр 1850 г.)

Описание:

During 1840s some Northern states passed laws establishing a ten-hour working day

Добавлено на ленту времени:

ush timeline

1 мес назад

2

0

635

Дата:

1 дек 1840 г.

1 апр 1850 г.

~ 9 years and 4 months

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