Celtic & Medieval (CA. 800 B.C.-16TH Century)--The Celts, mixed with plenty of Scandinavian and Dutch tribes of varying origins, ruled England until the Romans established rule there in A.D. 43. Celtic art survived the Roman conquest and medieval Christianity mainly as carved swirls and decorations on the "Celtic Crosses" peppering cemeteries. During the medieval period, colorful Celtic images and illustrations decorated the margins of Bibles and Gospels, giving the books their moniker "illuminated manuscripts."

Important examples and artists of this period include:

Wilton Diptych, National Gallery, London. The first truly important, truly British painting, this diptych (a painting on two hinged panels) was crafted in the late 1390s for Richard II by an unknown artist who mixed Italian and Northern European influences.

Lindisfarne Gospels, British Library, London. One of Europe's greatest illuminated manuscripts from the 7th century, this work is particularly well crafted and well preserved.

Matthew Paris (d. 1259). A Benedictine monk who illuminated his own writings, Paris put his significant artistic gifts to good use as the official St. Albans Abbey chronicler. Examples of his work are now in London's British Library and Cambridge's Corpus Christi College.