There are three types of sources which are used to study history. They are written, oral and material sources. These sources are preserved in different ways. 

According to me, the following measures should be taken to preserve the sources:

1. A regular repair and maintenance work of forts, memorials and palaces should be carried out. Timely action should be taken to avoid vandalisation of historic and public places. 

2. Historical coins, weapons should be handled with precaution and utmost care. They should be kept in a safe place to avoid the possibility of theft. 

3. Social awareness regarding the conservation and preservation of our cultural and natural heritage should be created. People will develop affinity towards the heritage and feel connected.

4. Variations in environment and climatic conditions pose a threat to monumental structures. Humidity, dampness, moulds and pollution cause irrevocable damage to manuscripts, rare artefacts, statues, coins, etc.

5. To protect them, special arrangements have to be made like rooms with controlled temperature or sanitising and detoxing the rooms. 

6. Oral literature like owis, folk songs should be compiled and written down. 

7. Public training programmes should be conducted for understanding the importance of history. 

8. Experts from different fields should be involved in preservation and conservation projects. S Stringent laws should be enacted to protect the monuments.

9. Above all, people’s participation in conservation and preservation process is paramount.