Evidence of
Neolithic activity includes a
henge near Long Ivor Farm in the northeast of the parish. A
Bronze Age bell barrow stands on a slope of Rook Hill in the southeast.
Iron Age settlements include a site on high ground at Cow Down in the east of the parish, where there are foundations of a large enclosure. The site was excavated by
Sonia Chadwick Hawkes between 1956 and 1960. Two
Roman roads crossed at Kingston Deverill. A short length of north–south road, probably a section of the route from Bath to Poole, survives on Brimsdown Hill and became part of the boundary with
Maiden Bradley parish. Land at Longbridge and Crockerton belonged to
Glastonbury Abbey from the 10th century. Two estates were recorded in the 1086 Domesday Book at
Devrel, with altogether 24 households. The manor house at Hill Deverill dates from the 16th century and is Grade II* listed. The medieval village of Hill Deverill was to the west of the house. A
hollow way, field boundaries and house platforms survive. In 1655, Sir
James Thynne provided a terrace of three two-storey
almshouses southeast of Longbridge Deverill church, built in rubble stone with slate roofs. A wooden clock face projects from the gable facing the main road. In the 19th century a shortage of employment led to emigration to America, Canada or Australia; 181 people left from Longbridge. Pottery was made at Crockerton from locally dug clay, until the industry declined in the 19th century. Crockerton also had a cloth mill, later a silk mill, which closed in 1894. ==Religious sites==