Between 1976 and 1981, after a factory was demolished, and prior to the building of the Coppergate Shopping Centre, extensive excavations were conducted in the area. Well-preserved remains of some of the timber buildings of the Viking city of Jorvík were discovered, along with workshops, fences, animal pens, privies, pits and wells, together with durable materials and artefacts of the time, such as pottery, metalwork and bones. Unusually, wood, leather, textiles, and plant and animal remains from the period around 900 AD, were also discovered to be preserved in oxygen-deprived wet clay. In all, over 40,000 objects were recovered. These were used to create the centre.