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1 янв 1862 г. - Safety Valve Theory

Описание:

This theory states that when hardships occurred in Eastern states, citizens move westward to new and prosperous opportunities.

Добавлено на ленту времени:

period 6

ByAshley Wright

3 фев 2020

Дата:

1 янв 1862 г.

Сейчас

~ 162 г назад

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