Samoan fire sword/knife dancing, which began as a marketed art form in 1946, appears to be the foundation of modern fire spinning. To learn more about the origins of fire flow arts, check out the book Flaming Sword of Samoa : The Story of the Fire Knife Dance by Freddie Letuli and Patricia Letuli, which can be found here: https://vassarcollege.worldcat.org/title/flaming-sword-of-samoa-the-story-of-the-fire-knife-dance/oclc/122695470
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