Glossary

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Uccello, Paolo (Italian, 1397–1475)
A painter and mathematician of the early Italian Renaissance, whose innovations in the use and techniques of perspective would influence later generations of Old Master artists. His most famous work is The Battle of San Romano, completed for the Palazzo Medici in Florence.
underpainting
A term that refers to the first layer of a painting, executed in order to set values that will be carried out through the course of painting the work. In general most or all of the underpainting is covered by subsequent layers of paint.
Universal Exhibition
A world’s fair, generally held on a given theme, organized by a host country and sanctioned by the Bureau international des expositions. The tradition began in the nineteenth century, with the 1851 Great Exhibition of the Works of Industry of All Nations, in London, among the first and best known.
Urquhart, Tony (Canadian, b. 1934)
A painter, sculptor, and curator, and a pioneer of abstract art in Canada. For a time a member of the London circle that included Jack Chambers and Greg Curnoe, Urquhart was an important advocate for the rights of professional artists through his association with Chambers’s initiative CAR (later CARFAC).