Several small-scale archaeological expeditions in the district have found only a few traces of prehistoric man. Tools from the Late Stone Age were found in Sejakpur in
Sayla taluk in 1957–58. Near
Rangpur in 1931 was found a Harappan site, the first Harappan site found in Gujarat and evidence that the Indus Valley civilization extended to Saurasthra. In fact, Rangpur was the first site found that lasted longer than the Harappan civilization itself. However, it seems Rangpur was not a major commercial centre since no seals were found here. The early history of this district is unclear, but most likely follows the same pattern as the other districts of Saurashtra. The district was probably ruled by the Mauryas, then Indo-Greeks. Afterwards it was ruled by the Western Satraps, and then by the Gurjara-Pratiharas. Eventually the
Chaulukyas took over, and after they were destroyed by the Delhi Sultanate, it became part of their empire. In 1407, the governors of Gujarat declared their independence, and Surendranagar became part of the
Gujarat Sultanate. After 1573, Gujarat was annexed into the Mughal Empire and Surendranagar became part of the
Gujarat Subah. However, on the group control of the district rested with numerous kings and landlords with estates of various sizes, and this continued until the British period. There were several states in the district during the British period: states such as
Dhrangadhra, Wadhwan, and
Limbdi were ruled by the jhala Rajputs, formerly known as Makwanas. They claim descent from Harpaldev, son of Kesar Makwana whose wife was daughter of celebrated Chaulukya ruler Karandev solanki. Harpaldev received 1800 villages from Karandev solanki for his valour. The state of
Bajana was founded by Malik Haider Khan, a Jat leader driven out of Sindh who was given land by the Gujarat sultans. Dasada was ruled by Multani Maliks descended from a Thanedar during the reign of
Ahmad Shah I. Dhandhalapur was ruled first by the Babarias, but in 1790 they were displaced by the Khadvads. Lakhtar was founded when a son of the Raja of Halvad received the village from the chief of
Dhrangadhra. The rulers of Limbdi claimed descent from Harpaldev.
Thangadh was originally ruled by the
Babariyas. They were ousted by the Parmars, who migrated from
Tharparkar and were given land by the Vaghelas of
Wadhwan. After the Parmars came the Kathis, who made Than their headquarters. However Kartalab Khan, governor of Gujarat, dispersed the Kathis and destroyed their Surya temple. Than remained in Muslim hands until the fading of Mughal power, when the jhala of Halvad took it over. ==Economy==