Final answer:
The importance of exercise and physical fitness emerged in America during the late 19th and early 20th centuries with advancements in science, industrialization, and changing societal attitudes.
Step-by-step explanation:
The importance of exercise and physical fitness emerged in America during the late 19th and early 20th centuries with advancements in science, industrialization, and changing societal attitudes. The rise of the Industrial Revolution brought about a sedentary lifestyle for many Americans, leading to health concerns and a recognition of the need for physical activity. Additionally, the Progressive Era saw increased focus on the overall well-being of individuals, including the promotion of exercise and healthy living.
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