Primary sources

Letters & diaries

Personal writings that document firsthand experiences, emotions, and events as they happen

Interviews & oral histories

Direct conversations with individuals who have experienced or witnessed an event

Photographs & videos

Unaltered visual records capturing historical moments or events

Official Documents & Government records

Authentic records created by governments, institutions, or individuals at the time of an event.

Autobiographies & memoirs

Personal accounts written by individuals about their own lives and experiences.

Artifacts & physical objects

Material evidence from history, such as tools, clothing, or manuscripts.

Scientific Research & Experiment Results

Original studies, experiments, and findings published by researchers.

Works of Literature, Art, and Music

Original creative works produced by artists, musicians, or writers.