1822 and the King's wearing of tartan, resulted in a massive upsurge in demand for kilts and tartans that could not be met by the Scottish linen industry. The designation of individual clan tartans was largely defined in this period and they became a major symbol of Scottish identity. This "Highlandism", by which all of Scotland was identified with the culture of the Highlands, was cemented by Queen Victoria's interest in the country, her adoption of Balmoral Castle as a major royal retreat from and her interest in "tartenry". Clan symbols The revival of interest, and demand for clan ancestry, has led to the production of lists and maps covering the whole of Scotland giving clan names and showing territories, sometimes with the appropriate tartans. While some lists and clan maps confine their area to the Highlands, others also show Lowland clans or families. Territorial areas and allegiances changed over time, and there are also differing decisions on which (smaller) clans and families should be omitted (some alternative online sources are listed in the External links section below). This list of clans contains clans registered with the Lord Lyon Court. The Lord Lyon Court defines a clan or family as a legally recognised group, but does not differentiate between families and clans as it recognises both terms as being interchangeable. Clans or families thought to have had a chief in the past but not currently recognised by the Lord Lyon are listed at armigerous clans. Tartan Tartans were traditionally associated with the Highland Clans and following the end of the Dress Act of 1746 banning tartans from being worn by men and boys, "district then clan tartans" have been an important part of Scottish clans. Almost all Scottish clans have more than one tartan attributed to their surname. Although there are no rules on who can or cannot wear a particular tartan, and it is possible for anyone to create a tartan and name it almost any name they wish, the only person with the authority to make a clan's tartan "official" is the chief. In some cases, following such recognition from the clan chief, the clan tartan is recorded and registered by the Lord Lyon. Once approved by the Lord Lyon, after recommendation by the Advisory Committee on Tartan, the clan tartan is then recorded in the Lyon Court Books. In at least one instance a clan tartan appears