What did the nok people create using terra cotta?

These artifacts are mostly terracotta sculptures of human heads, human figures, and animals. Nok sculptures have been found across an area over 78,000 square kilometers (30,116 square miles), suggesting these artists, although they received their clay from a central source, were part of an expansive civilization.

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Explanation:

The artifacts are mostly terracotta sculptures of human heads, human figures, and animals. First known culture in West Africa to produce this form of art.

the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes

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