It was important because of its historial value
Assuming this is referring to the same list that was posted before, it would be "rapid" that describes the expansion of the United States between 1789 and 1850.
Answer:
The story tends to go something like this: Inventors, economists, and statesmen in Western Europe dreamed up a new industrialized world. Fueled by the optimism and scientific know-how of the Enlightenment, a series of heroic men—James Watt, Adam Smith, William Huskisson, and so on—fought back against the stultifying effects of regulated economies, irrational laws and customs, and a traditional guild structure that quashed innovation. By the mid-19th century, they had managed to implement a laissez-faire (“free”) economy that ran on new machines and was centered around modern factories and an urban working class.
Explanation:
Post WW2. Mostly when Communism China was taking over Nationalist China. And especially that they both are Communist
