Beginning in the late 19th century, the Met started acquiring ancient art and artifacts from the Near East. From a few cuneiform tablets and seals, the Met's collection of Near Eastern art has grown to more than 7,000 pieces. Representing a history of the region beginning in the Neolithic Period and encompassing the fall of the Sasanian Empire and the end of Late Antiquity, the collection includes works from the Sumerian, Hittite, Sasanian, Assyrian, Babylonian, and Elamite cultures (among others), as well as an extensive collection of unique Bronze Age objects. The highlights of the collection include a set of monumental stone "lamassu", or guardian figures, from the Northwest Palace of the Assyrian king Ashurnasirpal II.