There has been a settlement at the location of Bath in the River Avon river valley since the Romans occupied it around 60 CE. Bath Abbey was established in the 7th century, and Bath became a religious center. The building was rebuilt in the 12th and 16th centuries, which is still standing today. In the 17th century claims were made that the hot springs that drew the Romans to the site had curative properties. Bath then became a popular spa town in the Georgian era, and many of the buildings date from that era, such as the Royal Crescent, the Circus, Pump Room, and the Assembly Rooms. Jane Austen lived in Bath in the late 18th century, and located several of her novels there.