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1 jan 1862 ano - Safety Valve Theory

Descrição:

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

Adicionado na linha do tempo:

period 6

ByAshley Wright

3 fev 2020

0

0

331

Data:

1 jan 1862 ano

Agora

~ 163 years ago

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