Which is a characteristic of auto biography

An autobiography is a self-written book about a person's life (the author writes a book about himself)

Characteristics of an autobiography:

Usually written in 1st person: autobiographies are written by a person about their own life, therefore they use I, me, and my when writing.

They usually contain a Chronology: A chronology is usually listed in the back of the book, listing the important dates and events on that date