Swansea Vale Railway nineteenth century, when land transport was limited to what pack animals could carry on their backs. At that time the extraction of copper in Cornwall became an important industry, and as a great deal of coal is required to smelt copper, it became the practice to bring the copper to Swansea by ship and smelt it there. This specific sector of the metal industry became so dominant that Swansea was given the nickname "Copperopolis". The works engaged in this industry were located on the banks of the River Tawe at first, but the construction of the Swansea Canal, opened in
Swansea existing mosques (Swansea University Mosque, Hafod Mosque, Imam Khoei Mosque). Swansea is represented in Buddhism with the Dharmavajra Kadampa Buddhist Centre, Pulpung Changchub Dargyeling (Kagyu Tradition) and a branch of the international Dzogchen Community (Nyingma Tradition). Swansea Synagogue and Jehovah's Witness Kingdom Hall are both located in the Uplands area. Swansea City Centre is undergoing a £1 billion transformation scheme. A large area of the city is earmarked for redevelopment. A new city-centre retail precinct is planned involving demolition of the dilapidated St. David's Shopping Centre which has three or four traders, about 13% of the retail space in the