minstrel show
US /ˈmɪnstrəl ˌʃoʊ/
UK /ˈmɪnstrəl ˌʃoʊ/

1.
a popular stage entertainment of the 19th century in which white performers in blackface caricatured black people
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The historical exhibit included artifacts from a minstrel show.
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Many early American comedians got their start in minstrel shows.