Emperor Huizong of Song
The "Kaogutu" (考古圖) or "Illustrated Catalogue of Examined Antiquity" (preface dated 1092) compiled by Lü Dalin (呂大臨) (1046–1092) is one of the oldest known catalogues to systematically describe and classify ancient artifacts which were unearthed. Another catalogue was the "Chong xiu Xuanhe bogutu" (重修宣和博古圖) or "Revised Illustrated Catalogue of Xuanhe Profoundly Learned Antiquity" (compiled from 1111 to 1125), commissioned by Emperor Huizong of Song (r. 1100 – 1125), and also featured illustrations of some 840 vessels and rubbings. This catalogue was criticized by Hong Mai (洪迈) (1123–1202), who found that descriptions of certain ancient vessels dating to the Han Dynasty were incorrect when he compared them to actual Han Dynasty specimens he obtained for study.