1, oral history: you can interview family members and write family history based on oral materials. In the process of writing family history, in addition to oral materials, you can also use various forms of materials, such as photos many years ago, which can best reflect the changes of the family and the times.

2. History of urban change: through extensive interviews and data collection, study the changes of a certain area or public place in the city. It is best to choose a relatively small place, interview the surrounding residents and relevant departments, and sort out the history of regional changes.

3. Memoirs of people: interview representative people, such as leading cadres, university teachers, graduates who took the college entrance examination in the 1980s, civil servants who went into business in the 1990s, or legendary life experiences that can reflect the changes of the times. It can be combined with the theme of the recent 40th anniversary of reform and opening up.

4. Investigation on the construction of local history and culture: we can investigate and study the origin of local history, the efforts made by local departments in the promotion and protection of historical culture, the contributions made by local records offices, museums, cultural bureaus and tourism bureaus in the promotion and construction of local history and culture, and novels, film and television dramas appearing in local historical sites. You can also investigate the local people's understanding and historical identity of local history and culture, and understand the influence of historical and cultural construction on them.