Sumer
Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.
Prehistoric art
Prehistoric artwork such as painted pottery in Neolithic China can be traced back to the Yangshao culture and Longshan culture of the Yellow River valley. During China's Bronze Age, Chinese of the ancient Shang Dynasty and Zhou Dynasty produced multitudes of Chinese ritual bronzes, which are elaborate versions of ordinary vessels and other objects used in rituals of ancestor veneration, decorated with "taotie" motifs and by the late Shang Chinese bronze inscriptions. Discoveries in 1987 in Sanxingdui in central China revealed a previously unknown pre-literate Bronze Age culture whose artefacts included spectacular very large bronze figures (example left), and which appeared culturally very different from the contemporary late Shang, which has always formed part of the account of the continuous tradition of Chinese culture.