TIL modern square dancing was popularized by Henry Ford, in reaction to the rise of jazz, which he saw as a Jewish plot to corrupt society. He used his wealth to promote square dancing, even getting it taught in 50% of American public schools, and designated as the state dance of 28 states.

https://en.wikipedia.org/wiki/Modern_Western_square_dance#History_of_modern_western_…
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https://www.reddit.com/r/todayilearned/comments/1fz8f38/til_modern_square_dancing_was_popularized_by/