History. Primary sources in history are usually firsthand accounts or records created at the time of the event or period being studied. Examples include diaries, letters, newspapers, government documents, photographs, and artifacts.
Literature. Primary sources in literature are usually the actual works of literature, such as novels, poems, and plays, created by the author being studied. Other primary sources might include personal letters or journals of the author.
Science. Primary sources in science are usually original research studies or experiments, published in scientific journals or presented at conferences. Examples include research articles, laboratory notes, and experimental data.
Sociology. Primary sources in sociology can include surveys, interviews, and other types of data collection conducted by the researcher. Other primary sources might include government or organizational reports, as well as personal narratives and other firsthand accounts of social phenomena.
Art. Primary sources in art are usually the actual works of art, such as paintings, sculptures, or photographs, created by the artist being studied. Other primary sources might include personal letters or journals of the artist, as well as contemporary reviews or critiques of their work.
These are just a few examples of primary sources in different disciplines. The specific types of primary sources you’ll encounter in your research will depend on your research topic and the discipline you’re working in.