The aim of this study was to collect information on capital formation in Britain, 1750-1850 Variables The central variable collected is the value of insured property, as shown in the records of the leading London insurance companies in that period. Entries put on tape include the identifying number, the date, location, occupation(s) of occupier(s) of the properties insured, some further identifying codes of the type of property, and insured values (in $s) of four categories of property: (1)dwellings; (2)furniture and personal property; (3)outhouses and industrial/commercial buildings; (4)stocks, machinery and utensils, as well as (5)total values insured. Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.