What term refers to the story of a person's life written by someone other than the person themselves?

The term that refers to the story of a person's life written by someone other than the person themselves is biography. A biography provides an account of the individual's life, often including their achievements, challenges, and the context in which they lived, and it is crafted by an author who conducts research, interviews, and reviews various sources to present an accurate representation.

In contrast, an autobiography is written by the individual themselves, detailing their own experiences and insights. A memoir shares a specific aspect of someone's life, often focusing on particular events or themes rather than their complete life story. A chronicle is a factual written account of important or historical events in the order of their occurrence, which may not necessarily focus on an individual's life but rather on events or periods. Thus, biography is the most fitting term for this definition, as it captures the essence of an outsider narrating another person's life story.