A written account of a person's life and the branch of literature concerned with the lives of people. (Harrod's Librarians' Glossary, 7th ed)

A biography in the context of medicine often refers to a detailed, chronological account of a patient's medical history, including symptoms, diagnoses, treatments, and responses, which serves as a comprehensive resource for healthcare providers to understand the patient's health status and guide future care decisions.

Books containing photographs, prints, drawings, portraits, plates, diagrams, facsimiles, maps, tables, or other representations or systematic arrangement of data designed to elucidate or decorate its contents. (From The ALA Glossary of Library and Information Science, 1983, p114)

Time period from 1801 through 1900 of the common era.

Time period from 1901 through 2000 of the common era.

Time period from 1701 through 1800 of the common era.