Norwich also records the site of an Anglo-Saxon church in Tombland, the site of the Saxon market place and the later Norman cathedral. Norwich continued to be a major centre for trade, the River Wensum being a convenient export route to the River Yare and Great Yarmouth, which served as the port for Norwich. Quern stones and other artefacts from Scandinavia and the Rhineland have been found during excavations in Norwich city centre. These date from the 11th century onwards. Norwich Castle was founded soon after the Norman Conquest. The Domesday Book records that 98 Saxon homes were demolished to make
Great stand on the Ugra river troops up to the Ugra. Fighting began at one o'clock on the eighth and continued for almost four days. All attempts to cross the river failed, largely because of Russian firearms and because the river was wide enough to make Tatar arrows ineffective. The battlefield extended five kilometers along the Ugra from its mouth westward. Akhmed withdrew two versts (kilometers) south to a place called Luza (location?). He then tried to secretly move his troops to a place called 'Opakhov', but his movement was detected and the crossing blocked. Ivan began negotiations with Akhmed which led nowhere but gave Ivan