With reference to Things Fall Apart, show how sub-plots or secondary characters contribute to the reader's understanding and appreciation of the work as a whole.
Thesis Statement: In the novel Things Fall Apart, the author Cinua Achebe addresses many social groups that are treated insignificantly by various villages. The main social groups are women, children, and white men. Since the marginalisation consists of exclusion and physical abuse, Achebe makes use of secondary characters to further display and develop the theme of the clash of cultures, while presenting the conflicts and challenges they face.