Oral history refers to a method of collecting and preserving historical information through recorded interviews with people who have lived through or witnessed significant events. It is based on the belief that personal experiences and perspectives are an important part of understanding history, and it seeks to capture these stories before they are lost forever. Oral histories can be conducted in person, over the phone, or via video conferencing, and they often involve extensive follow-up questions to elicit as much detail as possible from the interviewee. The resulting recordings are then archived for future researchers and scholars to study and analyze.