Concept
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The Ku Klux Klan
Ku Klux Klan cross burning, 1921
Robed members of the Ku Klux Klan burn a cross during a rally in 1921. Cross burning was introduced during the reemergence of the Klan in 1915.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Ku Klux Klan cross burning, 1921."
https://en.wikipedia.org/wiki/Ku_Klux_Klan#/media/File:Ku_Klux_Klan_members_and_a_burning_cross,_Denver,_Colorado,_1921.jpg
Wikipedia
Public domain.