Anglo-Scottish border English king, Edgar the Peaceful, at his 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. It remains the border today, with the exception of the Debatable Lands, north of Carlisle, and a small area around Berwick-upon-Tweed, which was taken
Piscataqua River border dispute with its interpretation of the words ‘Middle of the River’ during the 1970s litigation.” New Hampshire appealed the dismissal and requested the Court to reconsider its dismissal, but the Court denied the motion to reconsider. Piscataqua River border dispute The Piscataqua River border dispute was a dispute between the US states of Maine and New Hampshire over ownership of Seavey’s Island in the Piscataqua River, which forms the border between Maine and New Hampshire. The dispute was settled in 2002 by the US Supreme Court in favor of Maine. Seavey’s Island lies in the northern side of the Piscataqua River,