Ely, Cambridgeshire in the context of "Kimmeridge Clay"

Cambridgeshire (abbreviated Cambs.) is a ceremonial county in the East of England and East Anglia. It is bordered by Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfordshire to the south, Northamptonshire to the west, and Bedfordshire to the south-west. The largest settlement is the city of Peterborough.

The county has an area of 3,389 km (1,309 sq mi) and had an estimated population of 906,814 in 2022. Peterborough, in the north-west, and Cambridge, in the south, are the largest settlements. The remainder of the county is rural, and contains the city of Ely in the east, Wisbech in the north-east, and St Neots and Huntingdon in the west. For local government purposes Cambridgeshire comprises a non-metropolitan county, with five districts, and the unitary authority area of Peterborough; their local authorities collaborate through Cambridgeshire and Peterborough Combined Authority. The county did not historically include Huntingdonshire or the Soke of Peterborough, which was part of Northamptonshire.

The River Cam (/ˈkæm/) is the main river flowing through Cambridge in eastern England. After leaving Cambridge, it flows north and east before joining the River Great Ouse to the south of Ely, at Pope's Corner. The total distance from Cambridge to the sea is about 40 mi (64 km) and is navigable for punts, small boats, and rowing craft. The Great Ouse also connects to England's canal system via the Middle Level Navigations and the River Nene. In total, the Cam runs for around 69 kilometres (43 mi) from its furthest source (near Debden in Essex) to its confluence with the Great Ouse.

Ely Cathedral, formally the Cathedral Church of the Holy and Undivided Trinity of Ely, is an Anglican cathedral in the city of Ely, Cambridgeshire, England.

The cathedral can trace its origin to the abbey founded in Ely in 672 by St Æthelthryth (also called Etheldreda). The earliest parts of the present building date to 1083, and it was granted cathedral status in 1109. Until the Reformation, the cathedral was dedicated to St Etheldreda and St Peter, at which point it was refounded as the Cathedral Church of the Holy and Undivided Trinity of Ely. It is the cathedral of the Diocese of Ely, which covers most of Cambridgeshire and western Norfolk, and Huntingdonshire. It is the seat of the Bishop of Ely and a suffragan bishop, the Bishop of Huntingdon.

The Bishop of Ely is the ordinary of the Church of England Diocese of Ely in the Province of Canterbury. The diocese roughly covers the county of Cambridgeshire (with the exception of the Soke of Peterborough), together with a section of north-west Norfolk and has its episcopal see in the City of Ely, Isle of Ely in Cambridgeshire, where the seat is located at the Cathedral Church of the Holy Trinity. The diocesan bishops resided at the Bishop's Palace, Ely until 1941; they now reside in Bishop's House, the former cathedral deanery.

The roots of the Diocese of Ely are ancient and the area of Ely was part of the patrimony of Saint Etheldreda. Prior to the elevation of Ely Cathedral as the seat of the diocese, it existed as first as a convent of religious sisters and later as a monastery. It was led by first by an abbess and later by an abbot. The convent was founded in the city in 673. After St Etheldreda's death in 679 she was buried outside the church. Her remains were later translated inside, the foundress being commemorated as a great Anglican saint. The monastery, and much of the city of Ely, were destroyed in the Danish invasions that began in 869 or 870. A new Benedictine monastery was built and endowed on the site by Saint Athelwold, Bishop of Winchester, in 970, in a wave of monastic refoundations which also included Peterborough and Ramsey. In the Domesday Book in 1086, the Abbot of Ely is referenced as a landholder of Foxehola. The abbey became a cathedral in 1109, after a new Diocese of Ely was created out of land taken from the Diocese of Lincoln. From that time the line of bishops begins.