In the mid-19th century the revival continued, with Sir Samuel Ferguson, the Young Ireland movement, and others popularising folk tales and histories in countries and territories with Celtic roots. At the same time, archaeological and historical work was beginning to make progress in constructing a better understanding of regional history. Interest in ornamental 'Celtic' art developed, and 'Celtic' motifs began to be used in all sorts of contexts, including architecture, drawing on works like the "Grammar of Ornament" by the architect Owen Jones. Imitations of the ornate Insular penannular brooches of the 7–9th centuries were worn by figures such as Queen Victoria, many produced in Dublin by West & Son and other makers.