Anaphora and epistrophe are examples of?

Literary/rhetorical figures of speech that use repetition to emphasize a point.

Anaphora deliberately repeats a Word or Words at the beginning of a sentence, e.g. "But one hundred years later, the Negro still is not free. One hundred years later, the life of the Negro is still sadly crippled by the manacles of segregation and the chains of discrimination. One hundred years later, the Negro lives on a lonely island of poverty in the midst of a vast ocean of material prosperity. One hundred years later, the Negro is still languished in the corners of American society and finds himself an exile in his own land" – Martin Luther King

Epistrophe (also called antistrophe) repeats the Words at the end, e.g. "Government of the people, by the people, for the people"- President Abraham Lincoln