What colony was a major urban center in each of the three colonial regions?

Boston, Philadelphia, and Charleston

Explanation:

North America had many English colonies of different sizes and influence and power. Although all colonies were important for the settlement of the territory, there were 3 colonies that were the largest of the colonial regions, either by the trade they had, by industrial production, or by the number of people these colonies were large urban centers. These cities were Boston, Philadelphia, and Charleston.

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