Viking invasions of England in the context of "Norse settlements in Greenland"

A burh (Old English pronunciation: [burˠx]) or burg was an Anglo-Saxon fortification or fortified settlement. In the 9th century, raids and invasions by Vikings prompted Alfred the Great to develop a network of burhs and roads to use against such attackers. Some were new constructions; others were situated at the site of Iron Age hillforts or Roman forts and employed materials from the original fortifications. As at Lundenburh (medieval London), many were also situated on rivers: this facilitated internal lines of supply while aiming to restrict access to the interior of the kingdom for attackers in shallow-draught vessels such as longships.

Burhs also had a secondary role as commercial and sometimes administrative centres. Their fortifications were used to protect England's various royal mints.

English is a West Germanic language that originated from Ingvaeonic languages brought to Britain in the mid-5th to 7th centuries AD by Anglo-Saxon migrants from what is now northwest Germany, southern Denmark and the Netherlands. The Anglo-Saxons settled in the British Isles from the mid-5th century and came to dominate the bulk of southern Great Britain. Their language originated as a group of Ingvaeonic languages which were spoken by the settlers in England and southern and eastern Scotland in the early Middle Ages, displacing the Celtic languages, and, possibly, British Latin, that had previously been dominant. Old English reflected the varied origins of the Anglo-Saxon kingdoms established in different parts of Britain. The Late West Saxon dialect eventually became dominant. A significant subsequent influence upon the shaping of Old English came from contact with the North Germanic languages spoken by the Scandinavian Vikings who conquered and colonized parts of Britain during the 8th and 9th centuries, which led to much lexical borrowing and grammatical simplification. The Anglian dialects had a greater influence on Middle English.

After the Norman Conquest in 1066, Old English was replaced, for a time, by Anglo-Norman, also known as Anglo-Norman French, as the language of the upper classes. This is regarded as marking the end of the Old English or Anglo-Saxon era, as during this period the English language was heavily influenced by Anglo-Norman, developing into a phase known now as Middle English. The conquering Normans spoke a Romance langue d'oïl called Old Norman, which in Britain developed into Anglo-Norman. Many Norman and French loanwords entered the local language in this period, especially in vocabulary related to the church, the court system and the government. As Normans are descendants of Vikings who invaded France, Norman French was influenced by Old Norse, and many Norse loanwords in English came directly from French. Middle English was spoken to the late 15th century. The system of orthography that was established during the Middle English period is largely still in use today. Later changes in pronunciation, combined with the adoption of various foreign spellings, mean that the spelling of modern English words appears highly irregular.

Old Sarum, in Wiltshire, South West England, is the ruined and deserted site of the earliest settlement of Salisbury. Situated on a hill about two miles (three kilometres) north of modern Salisbury near the A345 road, the settlement appears in some of the earliest records in the country. It is an English Heritage property and is open to the public.

The great stone circles of Stonehenge and Avebury are near Old Sarum and indications of prehistoric settlement at the site have been discovered from as early as 3000 BC. Around 400 BC, during the Iron Age, a hillfort was erected, controlling the intersection of two trade paths and the River Avon. The site continued to be occupied during the Roman period, when the paths were made into roads. The Saxons took the British fort in the 6th century and later used it as a stronghold against Vikings. The Normans constructed a motte and bailey castle, a stone curtain wall, and Old Sarum Cathedral. A royal palace was built within Old Sarum Castle for King Henry I and was subsequently used by Plantagenet monarchs. This heyday of the settlement lasted for around 300 years until disputes between the Sheriff of Wiltshire, keeper of the castle, and the Bishop of Salisbury at the cathedral finally led to the removal of the church into the nearby plain. As New Salisbury grew up around the construction site for the new cathedral in the early 13th century, buildings at Old Sarum were dismantled for their stone and the old town dwindled. Its long-neglected castle was abandoned by Edward II in 1322 and sold by Henry VIII in 1514.