Thetford is supposed to have been the Sitomagus of the Romans. In the time of the Saxons, by whom it was called Theodford, it was the capital of East Anglia. During the heptarchy it was frequently desolated by the Danes. It was burned by them in 998 after a drawn battle between Swend and Ulfcytel, and again after Ulfcytel's second battle at Ringmere, 10th May 1004. From the reign of Athelstan to that of King John it possessed a mint. The see of Elmham was removed to it in 1070, but it was transferred to Norwich in 1094. At Domesday it had five burgesses, but by the time of Edward III. they had increased to 953. It was in corporated by Elizabeth in 1573. It returned two members to parliament from the time of Edward VI., but was disfranchised in 1868.