What did the change in immigration policies between the 1920s and the 1960s reveal about the United States?

In the 1920s, immigration laws favored immigrants from some countries and sharply limited others, especially through national-origins quotas. By the 1960s, policy shifted away from those quotas toward a system that gave greater importance to family ties and skills. This change showed that the United States was becoming more open to diversity and equality.

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