Andokides was an ancient Athenian vase painter, active from approximately 530 to 515 B.C. His work is unsigned and his true name unknown. He was identified as a unique artistic personality through stylistic traits found in common among several paintings. This corpus was then attributed by John D. Beazley to the Andokides Painter, a name derived from the potter Andokides, whose signature appears on several of the vases bearing the painter's work. He is often credited with being the originator of the red-figure vase painting technique. To be sure, he is certainly one of the earliest painters to work in the style. In total, fourteen amphorae and two cups are attributed to his hand. Six of the amphorae are "bilingual", meaning they display both red-figure and black-figure scenes. Several details regarding the artistic biography of the Andokides Painter have been suggested through connoisseurial studies of his work. As mentioned, he is widely thought to be the creator of the red-figure painting technique. It is likely, however, that he also worked in black-figure painting, and his style suggests a link, possibly in the role of student, to the great black-figure painter Exekias. John Boardman sees connections to Ionian art in the painter's work, suggesting that he may have been an immigrant from East Greece. Dietrich von Bothmer also notes that the earliest instances of the use of a white ground in vase painting occur in the Andokides Painter's scenes, perhaps indicating that he should be credited additionally with inventing the white ground technique. The invention of the red-figure technique occurred sometime around 525 B.C. The evidence for this date lies in the connections between the Andokides Painter's work and a datable monument: the Siphnian Treasury at Delphi. The frieze of the Treasury shows certain stylistic and compositional innovations, such as the introduction of three-quarter views and foreshortening, which parallel developments in the new red-figure painting, most especially in images by the Andokides Painter.