Sentence Correction (SC) | Re: Of all the vast tides of migration that have swept through history

Helloshivam10 ,

We hope this finds you well.

To answer your query, the simple past tense is the correct tense in this case because the verb in question refers to an action that concluded in the past -- the action of "none" (no other wave of immigration) being more concentrated than the wave that brought 12 million immigrants onto American shores in little more than three decades.

To understand the concept
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