The border between Belgium and the Netherlands came into existence with the secession of the southern provinces of the Netherlands that became Belgium. Although the secession took place in 1830 (Belgian Revolution and was recognised by the Netherlands in 1839 with the Treaty of London, the border between the two countries was only delimited by the Boundary Treaty signed in the Hague on 5 November 1842, and the Convention of Maastricht of 8 August 1843. The Hague Treaty delimited the border in general terms while the Maastricht Convention delineated the boundary with detailed descriptions and maps on a 1:10,000 or, where necessary, 1:2,500 scale.