By the early 19th century, the systematic excavation of ancient Greek sites had brought forth a plethora of sculptures with traces of notably multicolored surfaces. It was not until published findings by German archaeologist Vinzenz Brinkmann in the late 20th and early 21st century that the painting of ancient Greek sculptures became an established fact. Using high-intensity lamps, ultraviolet light, specially designed cameras, plaster casts, and certain powdered minerals, Brinkmann proved that the entire Parthenon, including the actual structure as well as the statues, had been painted.