Anglo-Scottish border
96-mile long border between England and Scotland

The Anglo-Scottish border is a land boundary that separates England and Scotland on the island of Great Britain. Though separating two countries and legal systems, it is an internal border of the United Kingdom. It runs for 96 miles (154 km) between Marshall Meadows Bay on the east coast and the Solway Firth in the west. It is known colloquially as "the border" in the whole of Scotland and the English counties of Cumbria and Northumberland.
The Firth of Forth was the border between the Picto-Gaelic Kingdom of Alba and the Anglian Kingdom of Northumbria in the early 10th century. It became the first Anglo-Scottish border with the annexation of Northumbria by Anglo-Saxon England in the mid-10th century. In 973, the Scottish king Kenneth II attended the English king Edgar the Peaceful at Edgar's council in Chester. After Kenneth had reportedly done homage, Edgar rewarded Kenneth by granting him Lothian. Despite this transaction, the control of Lothian was not finally settled and the region was taken by the Scots at the Battle of Carham in 1018 and the River Tweed became the de facto Anglo-Scottish border. The Solway–Tweed line was legally established in 1237 by the Treaty of York between England and Scotland.
The public source identifies “Anglo-Scottish border” as 96-mile long border between England and Scotland. This brief keeps that definition visible, then builds a research path around Anglo-Scottish, border and 96-mile.
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This entry incorporates text from “Anglo-Scottish border” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.