 As late as the 1950s, the Prairie Band of Potawatomi Indians performed a traditional ceremony to placate the Underworld Panther and maintain balance with the Thunderbird.When ethnographer Johann Georg Kohl visited the United States in the 1850s, he spoke with a Fond du Lac chief, who showed Kohl a piece of copper kept in his medicine bag.The chief said it was a strand of hair from the ", and thus considered extremely powerful.

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