During the English civil war, which began in the sixteen forties, Dorchester became a Puritan stronghold, it was captured and plundered by the Royalists in 1643 who then left.
The Royalists returned in 1644 but were fought off by the Puritans. After the civil war rapid change came to large areas of England. The town became the commercial and political centre of South Dorset through their textile and manufacturing industry until the middle of the seventeenth century.
By the beginning of the eighteenth century Dorchester was well known for its brewing industry.