Throughout the 20th century the North-East of England was synonymous with heavy industry and football. Coal mining, railways and ship-building provided an economic base upon which football - professional and amateur - flourished. Middlesbrough, Newcastle United and Sunderland all established themselves as national forces by winning League titles, FA Cups and by breaking records in the transfer market and in stadium attendances. They helped shape the area's identity, its sense of itself and the country's idea of the North-East.