Original sentence: At that time, the New England city was known for industrial innovation, concentrated prosperity, and the Springfield Armory
Edited sentence: At that time, the New England city was  comparable to modern-day Silicon Valley— known for industrial innovation, concentrated prosperity, and the celebrated Springfield Armory.Most importantly, it was a city that had built itself up from frontier outpost to national power through ingenuity – an example that the newly named Springfield, Illinois, sought to emulate