maintained by the clergy of the Church of England could be presented in court as legal documents, and this caused considerable hardship for Nonconformists. A number of proposals were presented to Parliament to set up centralised registries for recording vital events in the 1820s but none came to fruition. Eventually, increasing concern that the poor registration of baptisms, marriages and burials undermined property rights, by making it difficult to establish lines of descent, coupled with the complaints of Nonconformists, led to the establishment in 1833 of a parliamentary Select Committee on Parochial Registration. This took evidence on the state of the parochial system of registration, and made proposals that were eventually incorporated into the 1836 Registration and Marriage Acts. In addition, the government wanted to survey matters such as infant mortality, fertility and literacy to bring about improvements in health and social welfare. The medical establishment advocated this because a rapidly growing population in the northern industrial towns – caused by the Industrial Revolution – had created severe overcrowding, and the links between poor living conditions and short life expectancy were now known. The answer was the establishment of a civil registration system. It was hoped that improved registration of vital events would protect property rights through the more accurate recording of lines of descent. Civil registration would also remove the need for Nonconformists to rely upon the Church of England for registration, and provide medical data for research. As a result, in 1836, legislation was passed that ordered the civil registration of births, marriages and deaths in England and Wales. This took effect from 1 July 1837. A General Register Office was set up in London and the office of Registrar General was established. England and Wales were divided into 619 registration districts (623 from 1851), each under the supervision of a superintendent registrar. The districts were based on the recently introduced poor law unions. The registration districts were further divided into sub-districts (there could be two or more), each under the charge of registrars who were appointed locally. Early history Although the GRO was not specifically established to undertake statistical research, the early Registrars General, Thomas Henry Lister (1836–42) and George Graham (1842–79), built up a Statistical Department to compile medical, public health and actuarial statistics. Much of this work was undertaken in the early to mid-Victorian period by William Farr, the GRO's Superintendent of Statistics. Under these