mid-19th century, and the painters and their works were not well documented until the mid-19th century. Art historians spent almost another century determining attributions, studying iconography, and establishing bare outlines of even the major artists' lives; attribution of some of the most significant works is still debated. Scholarship of Early Netherlandish painting was one of the main activities of 19th- and 20th-century art history, and a major focus of two of the most important art historians of the 20th century: Max J. Friedländer (From Van Eyck to Breugel and Early Netherlandish Painting) and Erwin Panofsky (Early Netherlandish Painting). Terminology and scope The term "Early Netherlandish art" applies broadly to painters active during the 15th and 16th centuries in the northern European areas controlled by the Dukes of Burgundy and later the Habsburg dynasty. These artists became an early driving force behind the Northern Renaissance and the move away from the Gothic style. In this political and art-historical context, the north follows the Burgundian lands which straddled areas that encompass parts of modern France, Germany, Belgium and the Netherlands. The Netherlandish artists have been known by a variety of terms. "Late Gothic" is an early designation which emphasises continuity with the art of the Middle Ages. In the early 20th century, the artists were variously referred to in English as the "Ghent-Bruges school" or the "Old Netherlandish school". "Flemish Primitives" is a traditional art-historical term borrowed from the French primitifs flamands that became popular after the famous exhibition in Bruges in 1902 and remains in use today, especially in Dutch and German. In this context, "primitive" does not refer to a perceived lack of sophistication, but rather identifies the artists as originators of a new tradition in painting. Erwin Panofsky preferred the term ars nova ("new art"), which linked the movement with innovative composers of music such as Guillaume Dufay and Gilles Binchois, who were favoured by the Burgundian court over artists attached to the lavish French court. When the Burgundian dukes established centres of power in the Netherlands, they brought with them a more cosmopolitan outlook. According to Otto Pächt a simultaneous shift in art began sometime between 1406 and 1420 when a "revolution took place in painting"; a "new beauty" in art emerged, one that depicted the visible rather than the metaphysical world. In the 19th century, the Early Netherlandish artists were classified by nationality, with Jan van Eyck