It "provides a virtual reference library of genealogical information of particular relevance to the UK and Ireland".
Together, these constitute the British Isles - which is a geographical term for a group of islands lying off the north-west coast of mainland Europe.
(Legally, the Channel Islands and the Isle of Man are largely self governing, and are not part of the United Kingdom.
[8] At each level, some of the subject headings from the list prepared by the Family History Library in Salt Lake City are used.
As GENUKI is maintained solely by volunteers, the level of detail varies in different parts of the site.