What did the US receive in return foe ceding lands in maine to britain in 1842?
This was just a treaty (Webster-Ashburton Treaty, 1842), to settle border issues: The 1842 Treaty between the US and Great Britain settled the border dispute that had lingered since 1783. Because of geographical uncertainties, the exact border between the US and the British colonies of Canada and New Brunswick was disputed. The Treaty of 1842 set the disputed part of the border at the middle of the St.John River up to the St.Francis, and from there up the middle of the St.Francis River. “The compromise reached by Daniel Webster and 1st Baron Ashburton (Alexander Baring) awarded 7,015 square miles to the United States and 5,012 to Great Britain. Retention by the British of the northern area assured them of year-round overland military communications with Montreal. Webster used a map, said to have been marked with a red line by Benjamin Franklin at Paris in 1782, in persuading Maine and Massachusetts to accept the agreement.” You can read more about it here:
