Boston, United Kingdom

The order of importance was the other way round, when the Boston quarter of Skirbeck developed at the head of the Haven, which lies under the present Market Place. At that time, The Haven was the tidal part of the stream, now represented by the Stone Bridge Drain (map), which carried the water from the East and West Fens. The line of the road through Wide Bargate, to A52 and A16, is likely to have developed on marine silt levees. It led, as it does now, to the relatively high ground at Sibsey (map), and thence to Lindsey.

The reason for the original development of the town, away from the centre of Skirbeck, was that Boston lay on the point where navigable tidal water was alongside the land route, which used the Devensian terminal moraine ridge at Sibsey, between the upland of East Lindsey and the three routes to the south of Boston:

The coastal route, on the marine silts, crossed the mouth of Bicker Haven towards Spalding.

The Sleaford route, into Kesteven, passed via Swineshead (map), thence following the old course of the River Slea, on its marine silt levee.

The Salters' Way route into Kesteven, left Holland from Donington. This route was much more thoroughly developed, in the later Medieval period, by Bridge End Priory (map).

The River Witham seems to have joined The Haven after the flood of September 1014, having abandoned the port of Drayton, on what subsequently became known as Bicker Haven. The predecessor of Ralph the Staller owned most of both Skirbeck and Drayton, so it was a relatively simple task to transfer his business from Drayton, but the Domesday Book in 1086 still records his source of income in Boston under the heading of Drayton, so Boston's name is not mentioned. The Town Bridge still maintains the preflood route, along the old Haven bank.

After the Norman conquest, Ralph the Staller's property was taken over by Count Alan. It subsequently came to be attached to the Earldom of Richmond, North Yorkshire, and known as the Richmond Fee. It lay on the left bank of The Haven.

During the 11th and 12th centuries, Boston grew into a notable town and port. In 1204, King John vested sole control over the town in his bailiff. That year or the next, he levied a "fifteenth" tax (quinzieme) of 6.67% on the moveable goods of merchants in the ports of England: the merchants of Boston paid £780, the highest in the kingdom after London's £836. Thus, by the opening of the 13th century, Boston was already significant in trade with the continent of Europe and ranked as a port of the Hanseatic League. In the thirteenth century it was said to be the second port in the country. Edward III named it a staple port for the wool trade in 1369. Apart from wool, Boston also exported salt, produced locally on the Holland coast, grain, produced up-river, and lead, produced in Derbyshire and brought via Lincoln, up-river.

A quarrel between the local and foreign merchants led to the withdrawal of the Hansards around 1470. Around the same time, the decline of the local guilds and shift towards domestic weaving of English wool (conducted in other areas of the country) led to a near-complete collapse of the town's foreign trade. The silting of the Haven only furthered the town's decline.

At the dissolution of the monasteries by Henry VIII during the English Reformation, Boston's Dominican, Franciscan, Carmelite, and Augustinian friaries—erected during the boom years of the 13th and 14th centuries—were all expropriated. The refectory of the Dominican friary was eventually converted into a theatre in 1965 and now houses the Blackfriars Arts Centre.

Henry VIII granted the town its charter in 1545 and Boston had two Members of Parliament from 1552.

The staple trade made Boston a centre of intellectual influence from the Continent, including the teachings of John Calvin that became known as Calvinism. This, in turn, revolutionised the Christian beliefs and practices of many Bostonians and residents of the neighbouring shires of England. In 1607, a group of pilgrims from Nottinghamshire led by William Brewster and William Bradford attempted to escape pressure to conform with the teaching of the English church by going to the Netherlands from Boston. At that time, unsanctioned emigration was illegal, and they were brought before the court in the Guildhall. Most of the pilgrims were released fairly soon, and the following year, set sail for the Netherlands, settling in Leiden. In 1620, several of these were among the group who moved to New England in the Mayflower.