In 685, King Ecgfrith granted Benedict Biscop a "sunder-land". Also in 685 The Venerable Bede moved to the newly founded Jarrow monastery. He had started his monastic career at Monkwearmouth monastery and later wrote that he was "ácenned on sundorlande þæs ylcan mynstres" (born in a separate land of this same monastery). This can be taken as "sundorlande" (being Old English for "separate land") or the settlement of Sunderland. Alternatively, it is possible that Sunderland was later named in honour of Bede's connections to the area by people familiar with this statement of his.

Early history

The earliest inhabitants of the Sunderland area were Stone Age hunter-gatherers and artifacts from this era have been discovered, including microliths found during excavations at St Peter's Church, Monkwearmouth. During the final phase of the Stone Age, the Neolithic period (c. 4000 – c. 2000 BC), Hastings Hill, on the western outskirts of Sunderland, was a focal point of activity and a place of burial and ritual significance. Evidence includes the former presence of a cursus monument.

Roman Empire

It is believed the Brigantes inhabited the area around the River Wear in the pre- and post-Roman era. There is a long-standing local legend that there was a Roman settlement on the south bank of the River Wear on what is the site of the former Vaux Brewery, although no archaeological investigation has taken place.

In March 2021, a "trove" of Roman artefacts were recovered in the River Wear at North Hylton, including four stone anchors, a discovery of huge significance that may affirm a persistent theory of a Roman Dam or Port existing at the River Wear.

Early Middle Ages: Anglo-Saxon Northumbria

Recorded settlements at the mouth of the Wear date to 674, when an Anglo-Saxon nobleman, Benedict Biscop, granted land by King Ecgfrith of Northumbria, founded the Wearmouth–Jarrow (St Peter's) monastery on the north bank of the river—an area that became known as Monkwearmouth. Biscop's monastery was the first built of stone in Northumbria. He employed glaziers from France and in doing he re-established glass making in Britain. In 686 the community was taken over by Ceolfrid, and Wearmouth–Jarrow became a major centre of learning and knowledge in Anglo-Saxon England with a library of around 300 volumes.

The Codex Amiatinus, described by White as the 'finest book in the world',H. J. White, The Codex Amiatinus and its Birthplace, in: Studia Biblica et Ecclesiasctica (Oxford 1890), Vol. II, p. 273. was created at the monastery and was likely worked on by Bede, who was born at Wearmouth in 673. This is one of the oldest monasteries still standing in England. While at the monastery, Bede completed the Historia ecclesiastica gentis Anglorum (The Ecclesiastical History of the English People) in 731, a feat which earned him the title The father of English history.

In the late 8th century the Vikings raided the coast, and by the middle of the 9th century the monastery had been abandoned. Lands on the south side of the river were granted to the Bishop of Durham by Athelstan of England in 930; these became known as Bishopwearmouth and included settlements such as Ryhope which fall within the modern boundary of Sunderland.

Medieval developments after the Norman conquest In 1100, Bishopwearmouth parish included a fishing village at the southern mouth of the river (now the East End) known as 'Soender-land' (which evolved into 'Sunderland'). This settlement was granted a charter in 1179 by Hugh Pudsey, then the Bishop of Durham (who had quasi-monarchical power within the County Palatine); the charter gave its merchants the same rights as those of Newcastle-upon-Tyne, but it nevertheless took time for Sunderland to develop as a port. Fishing was the main commercial activity at the time: mainly herring in the 13th century, then salmon in the 14th and 15th centuries. From 1346 ships were being built at Wearmouth, by a merchant named Thomas Menville, and by 1396 a small amount of coal was being exported.

Rapid growth of the port was initially prompted by the salt trade. Salt exports from Sunderland are recorded from as early as the 13th century, but in 1589 salt pans were laid at Bishopwearmouth Panns (the modern-day name of the area the pans occupied is Pann's Bank, on the river bank between the city centre and the East End). Large vats of seawater were heated using coal; as the water evaporated, the salt remained. As coal was required to heat the salt pans, a coal mining community began to emerge. Only poor-quality coal was used in salt panning; better-quality coal was traded via the port, which subsequently began to grow.

17th century Both salt and coal continued to be exported through the 17th century, but the coal trade grew significantly (2–3,000 tons of coal were exported from Sunderland in the year 1600; by 1680 this had increased to 180,000 tons). Because of the difficulty for colliers trying to navigate the shallow waters of the Wear, coal mined further inland was loaded onto keels (large, flat-bottomed boats) and taken downriver to the waiting colliers. The keels were manned by a close-knit group of workers known as 'keelmen'.

In 1634 a charter was granted by Bishop Thomas Morton, which incorporated the inhabitants of the 'antient borough' of Sunderland as the 'Mayor, Aldermen and Commonality' of the Borough and granted the privilege of a market and an annual fair. While as a consequence a mayor and twelve aldermen were appointed and a common council established, their establishment does not seem to have survived the ensuing Civil War.

Before the 1st English civil war the North, with the exclusion of Kingston upon Hull, declared for the King. In 1644 the North was captured by parliament. The villages that later become Sunderland, were taken in March 1644. One artifact of the English civil war near this area was the long trench; a tactic of later warfare. In the village of Offerton roughly three miles inland from the area, skirmishes occurred. Parliament also blockaded the River Tyne, crippling the Newcastle coal trade which allowed the coal trade of the area to flourish for a short period. There was intense rivalry between the ports of Sunderland and Newcastle when the two towns took opposing sides in the Civil War.

In 1669, after the Restoration, King Charles II granted letters patent to one Edward Andrew, Esq. to 'build a pier and erect a lighthouse or lighthouses and cleanse the harbour of Sunderland', and authorised the levying of a tonnage duty on shipping in order to raise the necessary funds; however it took time before these improvements were realized.

There is evidence of a growing number of shipbuilders or boatbuilders being active on the River Wear in the late 17th century: among others, the banking family Goodchilds opened a building yard in 1672 (it eventually closed when the bank went out of business in 1821); and in 1691 one Thomas Burn aged 17 is recorded as having taken over the running of a yard from his mother.

18th century

River works The River Wear Commission was formed in 1717 in response to the growing prosperity of Sunderland as a port. Under the Board of Commissioners (a committee of local land owners, ship owners, colliery owners and merchants) a succession of civil engineers adapted the natural riverscape to meet the needs of maritime trade and shipbuilding. Their first major harbour work was the construction in stone of the South Pier (later known as the Old South Pier), begun in 1723 with the aim of diverting the river channel away from sandbanks; the building of the South Pier continued until 1759. By 1748 the river was being manually dredged. A northern counterpart to the South Pier was not yet in place; instead, a temporary breakwater was formed at around this time, consisting of a row of piles driven into the seabed interspersed with old keelboats. From 1786 work began on a more permanent North Pier (which was later known as the Old North Pier): it was formed from a wooden frame, filled with stones and faced with masonry, and eventually extended into the sea. The work was initially overseen by Robert Shout (the Wear Commissioners' Engineer from 1781 to 1795). In 1794 a lighthouse was built at the seaward end, by which time around half the pier had been enclosed in masonry; it was completed in 1802.

By the start of the 18th century the banks of the Wear were described as being studded with small shipyards, as far as the tide flowed. After 1717, measures having been taken to increase the depth of the river, Sunderland's shipbuilding trade grew substantially (in parallel with its coal exports). A number of warships were built, alongside many commercial sailing ships. By the middle of the century the town was probably the premier shipbuilding centre in Britain. By 1788 Sunderland was Britain's fourth largest port (by measure of tonnage) after London, Newcastle and Liverpool; among these it was the leading coal exporter (though it did not rival Newcastle in terms of home coal trade). Still further growth was driven across the region, towards the end of the century, by London's insatiable demand for coal during the French Revolutionary Wars.

Sunderland's third-biggest export, after coal and salt, was glass. The town's first modern glassworks were established in the 1690s and the industry grew through the 17th century. Its flourishing was aided by trading ships bringing good-quality sand (as ballast) from the Baltic and elsewhere which, together with locally available limestone (and coal to fire the furnaces) was a key ingredient in the glassmaking process. Other industries that developed alongside the river included lime burning and pottery making (the town's first commercial pottery manufactory, the Garrison Pottery, had opened in old Sunderland in 1750).

The world's first steam dredger was built in Sunderland in 1796-7 and put to work on the river the following year. Designed by Stout's successor as Engineer, Jonathan Pickernell jr (in post from 1795 to 1804), it consisted of a set of 'bag and spoon' dredgers driven by a tailor-made 4-horsepower Boulton & Watt beam engine. It was designed to dredge to a maximum depth of below the waterline and remained in operation until 1804, when its constituent parts were sold as separate lots. Onshore, numerous small industries supported the business of the burgeoning port. In 1797 the world's first patent ropery (producing machine-made rope, rather than using a ropewalk) was built in Sunderland, using a steam-powered hemp-spinning machine which had been devised by a local schoolmaster, Richard Fothergill, in 1793; the ropery building still stands, in the Deptford area of the city.

Urban developments

In 1719, the parish of Sunderland was carved from the densely populated east end of Bishopwearmouth by the establishment of a new parish church, Holy Trinity Church, Sunderland (today also known as Sunderland Old Parish Church). Later, in 1769, St John's Church was built as a chapel of ease within Holy Trinity parish; built by a local coal fitter, John Thornhill, it stood in Prospect Row to the north-east of the parish church. (St John's was demolished in 1972.) By 1720 the port area was completely built up, with large houses and gardens facing the Town Moor and the sea, and labourers' dwellings vying with manufactories alongside the river. The three original settlements of Wearmouth (Bishopwearmouth, Monkwearmouth and Sunderland) had begun to combine, driven by the success of the port of Sunderland and salt panning and shipbuilding along the banks of the river. Around this time, Sunderland was known as 'Sunderland-near-the-Sea'.