Northumberland role in the Industrial Revolution from the 18th century on. Many coal mines operated in Northumberland until the widespread closures in the 1970s and 1980s. Collieries operated at Ashington, Bedlington, Blyth, Choppington, Netherton, Ellington and Pegswood. The region's coalfields fuelled industrial expansion in other areas of Britain, and the need to transport the coal from the collieries to the Tyne led to the development of the first railways. Shipbuilding and armaments manufacture were other important industries before the deindustrialisation of the 1980s. Northumberland remains largely rural, and is the least-densely populated county in England. In recent years the county has
Dâmbovița County Dâmbovița County Dâmbovița County (also spelt "Dîmbovița", ) is a county (județ) of Romania, in Muntenia, with the capital city at Târgoviște. In 2011, it had a population of 518,745 and the population density was 127/km². It is one of the most densely populated counties in Romania. The county is named after the Dâmbovița River, which is a name of Slavic origin, derived from "Дъб, dămb", meaning "oak", as it once flowed through the oak forests of the Wallachian Plain. Dâmbovița county has a total area of 4,054 km². The county's landscape has three main forms. In the north there