Local Government Act 1888

The Local Government Act 1888 (51 & 52 Vict. c.41) was an Act of the Parliament of the United Kingdom, which established county councils and county borough councils in England and Wales. It came into effect on 1 April 1889, except for the County of London, which came into existence on 21 March at the request of the London County Council.

The Wikipedia page at has extensive coverage.