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
Norwich the males in some parishes were literate. The Norwich municipal library claims an excellent collection of these newspapers, also a folio collection of scrapbooks on 18th-century Norwich politics, which Knights says are "valuable and important". Norwich alehouses had 281 clubs and societies meeting in them in 1701, and at least 138 more were formed before 1758. The Theatre Royal opened in 1758, alongside the city's stage productions in inns and puppet shows in rowdy alehouses. In 1750 Norwich could boast nine booksellers and after 1780 a "growing number of circulating and subscription libraries". says: "[All this] made for a lively