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
Pinellas County, Florida 13.90% of those under age 18 and 8.20% of those age 65 or over. In 2000, as Florida's 6th and the nation's 53rd most populous county, Pinellas has a population greater than that of the individual states of Wyoming, Montana, Delaware, South Dakota, Alaska, North Dakota, and Vermont, as well as the District of Columbia. With a population density (as of the 2000 Census) of 3292 persons/mi², Pinellas county is by far the most densely populated county in the state, more than double that of Broward County, the next most densely populated. As of 2010, 87.17% of all residents spoke