Teesside Steelworks South Bank coke ovens and the BOS plant at Lackenby closed in 2015. The Teesside Beam Mill and some support services still operate at the Lackenby part of the site. Steel production on Teesside begins when Bolckow, Vaughan & Co Ltd, formerly Bolckow, Vaughan, opens the Cleveland Steelworks in Middlesbrough. Using the Bessemer process, the works have 3 blast furnaces. Albert John Dorman enters into a partnership with Albert de Lande Long taking over the West Marsh Ironworks in Middlesbrough. Dorman Long is founded. Bolckow, Vaughan & Co Ltd. acquire the Southbank Steelworks. The firm is also persuaded by Sydney
English of Northumbria (spoken in mining towns such as Ashington), Mackem (spoken in Wearside) and arguably Smoggie (Teesside). It is spoken mainly if not exclusively in the modern day counties of Northumberland, Tyne and Wear and Durham. The Anglo-Saxon kingdom of Northumbria was much more extensive than this, covering most parts of Yorkshire, and some parts of Cumbria, Lancashire and Scotland. The major Northumbrian dialects today are Geordie, Northern Northumbrian, Western Northumbrian, Southern Northumbrian or Pitmatic, Mackem, and arguably Smoggie, which is transitional between Northumbrian and Yorkshire English. To an outsider's ear the similarities between the dialects far outweigh the differences between the