30 abr 1850 año - Popular Sovereignty
Descripción:
 the principle that the authority of a state and its government is created and sustained by the consent of its people, through their elected representatives Popular sovereignty was invoked in the Compromise of 1850 and later in the Kansas-Nebraska Act (1854) 
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fecha:
30 abr 1850 año
Ahora mismo
 ~ 175 years ago