Heritage Open Day: Visit the remaining domestic buildings of the medieval Abingdon Abbey - and step back in time to experience the life of a Roman settlement. The Saxon Abbey of Abingdon was founded in the 7th century, sacked by the Danes in the 9th century, and re-dedicated as a Benedictine monastery in 953. It became one of the most cultured and wealthy monasteries of England and welcomed many royal visitors over the next 500 years, until being largely demolished during the Dissolution of the Monasteries. The domestic buildings were sold as commercial premises and over the next 400 years were successively a corn mill, a brewery and eventually slum dwellings.