[6] According to Ram Dayal Munda and S Bosu Mullick, the category Sadan was used in the estate of Nagvanshi kings of Chotanagpur.

[7][8] During the British Period, Colonel Edward Tuite Dalton referred to Sadan as Sudh or Sad or Sudhan in his work Descriptive Ethnology of Bengal in 1872.

During the British Period, the Sudh and Sudhan included all castes, such as Brahmin, Rajput, Gowala, Kurmi, Kahar, Kyastha etc.

[11] There are ancient cave paintings in Isko, Hazaribagh district, from the Meso-chalcolithic period (9,000-5,000 BC).

Copper hoard people reached Chota Nagpur around early 2nd millennium BCE.

[14] Iron slag, microliths, and potsherds from 1400 BCE, according to carbon dating, were discovered in Singhbhum district.

During the medieval period, the Nagvanshi, Ramgarh Raj, and Chero dynasties were ruling this region.

The Mughal influence reached this area during the reign of Emperor Akbar when it was invaded by Raja Mansingh in 1574.

Raghunath Mahato led a revolt against the East India company in the Jungle Mahals in 1769.

Thakur Vishwanath Shahdeo and Pandey Ganpat Rai led rebels against the East India company in the 1857 Rebellion.

[21] Various Sadan community and Castes are Ahir/Gowala, Bhogta, Bhuiya, Baraik, Dom, Ghasi, Jhora, Kewat, Rautia, Brahmin, Nagvanshi, Dhanuk, Paika, Dhobi/Baghwar, Karmali, Koeri, Kumhar, Kurmi, Sonar, Mali, Chamar, Lohra, Mahli, Tanti, Teli, Rajput and Bania etc.

[27] Sadan people follow folk Hinduism which is different from vedic religion and is non-vedic culture prevalent since Chalcolithic period.