The history of Deoghar is very old. It goes back to pre - historical period of Stone age. It has been suggeste after excavation in this area. Stone weapons and the statue of Soldiers with helmet made of celt were found in excavations. Such Celt has been found in Malay Peninsula and Chhotanagpur Area. Chinese Traveller Huen Tsang, who had visited India in A.D. 645, had also mentioned about this area in his writings. He has mentioned about Tailiyagarhi Fort in his Travellogue. According to his accounts Lofty Brick and Stone Tower were built beside Ganges. During the rule of Slave Dynasty in Delhi, Ityarudeen Bin Bukhtiar Khiljee had visited Assam and Bengal enroute Tailiyagarhi. The son of Laxman, the King of Cooch Bihar now in West Bengal fled from his kingdom and took shelter at Deoghar in the year 1201 A.D. He established his capital here. Since Deoghar was earlier a part of the Santhal Pargana district, history of which is found from 13th Century A.D, we attatch the history of Deoghar to Santhal Pargana. According to Allahabad Treaty signed with Sah Alam II in A.D. 1765, the Area of Santhal Pargana, Hazaribag District, Munger District and Bhagalpur District were known as Tarai Jungle. Santhal Pargana District was created in 1885 after partition of Bhagalpur and Birbhum. An important reason behind the creation of Santhal Pargana was Santhal Mutiny in 1854-55. Man and Munda were among the primitives of this area. These people might have come from Burma via Assam and had started living in Santhal Pargana. Cuningham, in his Ancient Indian Geography (1871) has stated that this might have been the House of Buddhists and this was beside the river Ganges. This is not at all surprising that the area of Santhal Pargana has remained a very important place from Religious point of view. Bhavishyat Puran which was written in 15th to 16th Century AD, has a mention of the Temple of Lord Baidyanath in Deoghar. After the defeat of Nawab Sirajudaula of Bengal in Battle of Palssy in the year 1757, the British reigned over Bengal. Deoghar (Santhal Pargana) was under Bengal at that time. In 1819, the British wanted to announce Santhal Pargana as its Territory and demarcated the area and gave it a Persian name Daminico (Area between Bhagalpur and Rajmahal) . The meaning of Daminico is Hilly Skirt. Mr. Potent was made Deputy Collector of this area is the year A.D. 1837. Deoghar District contributed significantly to the freedom struggle. Simon Commission was boycotted. The People of Deoghar participated in the Salt Satyagraha and the Civil Disobedience Movement. There were also observed boycotts of foreign liquor and cloths. Deoghar is now a district.