In the period after the Civil War to the turn of the century, Americans were able to spend money on entertainment as a results of rising standards of living owning to industrialization.
After the Civil War, America entered into a period of prosperity where industrialization grew at a massive pace.
This led to:
Thanks to being able to earn income and their standard of living rising, Americans were able to spend on entertainment such as sports and social clubs.
In conclusion, industrialization brought about a rise in standards of living that allowed for Americans to spend on entertainment.
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