History of Swansea this settlement are still disputed. Spellings such as "Swensi", "Sweni" and "Svenshi" are found on coins minted around 1140, The Welsh name, "Abertawe", translates to "Mouth of the Tawe". It first appears 1150 as "Aper Tyui". In the wake of the Norman Conquest and Norman invasion of Wales, Gower became a marcher lordship which included not only the peninsula itself but also the land to the east as far north as the Aman river and east to the river Tawe. This included the site of Swansea town, which was designated the capital of the area. Although Kilvey Hill is to
Lower Swansea valley river and continued in production until 1745. (It reopened as a pottery in 1764.) In 1737, the White Rock copper works at Pentrechwyth was established. By 1780 there were three copper works on the east bank of the river: White Rock, Middle and Upper Bank. On the west bank there was also one at Forest. By 1800 nine copper smelters were in production in the valley. By 1860 the lower Swansea valley was smelting two thirds of the copper ores imported to Britain, and changes in the output and economy of the Swansea valley had a significant effect on global