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No the Milky Way galaxy has not merged with any other galaxy
Answer:
Istanbul
Explanation:
The capital was Constantinople, it was renamed Istanbul.
The answer is: The middle colonies experienced economic growth as cities such as New York and Philadelphia became centers of trade.
When both new york and Philadelphia become the centers of trade, a lot of investors became interested to inject their capital into these two cities.
This created a lot of job opportunities in both of these cities, making the middle colonies around them to experience massive economic growth and increase in the number of modern infrastructures.