The art trade reflects modern usage of the term; Christie's "Department of Antiquities" covers objects "from the dawn of civilization to the Dark Ages, ranging from Western Europe to the Caspian Sea, embracing the cultures of Egypt, Greece, Rome and the Near East." Bonhams use a similar definition: "...4000 B.C to the 12th Century A.D. Geographically they originate from Egypt, the Near East and Europe ..." Official cut-off dates are often later, being unconcerned with precise divisions of art history, and using the term for all historical periods they wish to protect: in Jordan it is 1750, in Hong Kong 1800, and so on.