sentences:  The Domesday Survey of 1086, refers to Upton, and a wood for 200 pigs, worth £15.Upton, with its Norman Church, was situated at the top of the slope from the river terrace - the various levels in the area having been formed in the Ice-Age.In 1196, one "Henry de Slo" is mentioned in a Pipe roll - the earliest documentary reference found to "Slough".