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 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, between the town of Kittery, Maine, and the city of Portsmouth, New Hampshire. The island was originally five separate islands which were conjoined between 1800 and 1866 in order to build a naval shipyard. The