Among the key changes brought by the Hart-Celler Act: Quotas based on nation of origin were abolished. For the first time since the National Origins Quota system went into effect in 1921, the national origin was no longer a barrier to immigration.
Feudalism allowed large territories to be governed in the absence of a central government. Each lord or vassal raised an army to defend his fief and to serve the king as needed. One drawback to this system was that the nobles were very powerful because they controlled the armies.
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Southern Christian Leadership Conference
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