Historians are the one who constructs history. Historians use historical evidences to be perticular and authentic about the history. So its said that ” there cannot be a history without sources”.

Historical source is original source that contain important historical information. These sources are something that inform us about history at the most basic level, and these sources used as clues in order to study history Historical sources include documents, artifacts, archaeological sites, features.

WIKIPEDIA

Now let us see what are the sources of history.

https://www.tolerance.org/magazine/teaching-hard-history-with-primary-sources

Literary Sources & Archeological Sources

Literary Sources

Literature Means the written or orally conveyed Information.

There are two types in Literary sources .1.Written Literature 2. Oral Literature

Written Literature is furthur divided into Native Literature and Foriegn Literature. Oral Literature consists of Folk songs,stories,ballads, etc.

Written Literature is created by literates and where as Oral Literature is created by Illitrates.

Internet

Archeilogical Sources

The physical remains or ruins of the things used or the constructed structures in the past are
archaeological sources. The remains that have been buried in the Earth are removed through excavation. The historical
evidences include coins, inscriptions, monuments, pieces of pots and other artefacts.

https://www.tutorialspoint.com/ancient_indian_history/images/coins.jpg

The scientific process involved in digging the Earth to obtain
the ancient remains or fossils of our ancient people is called
excavation. Brush, trowel, knife and wood needles are used
to move the layers of the Earth. The pieces of pot, coins,
beads, crystals and bones thus obtained are subjected to
scientific research.

-INTERNET