Black pottery unearthed in Shandong Longshan, cultural relic of the later Neolithic Age in Rizhao County of Shandong Province in northern China; is the best work of Chinese ancient pottery. This kind of pottery only appeared in the early and middle periods of the Longshan Culture in Shandong Province. Perhaps it was the special local material and pottery making techniques that made the goblet so unique. In the final stage of the firing of artifacts, slowly add water to make charcoal off from the top of the kiln, produce smoke and deliberately let the smoke blackened the pottery, thus forming the black pottery. It is also a peak for the Chinese Neolithic pottery industry after the emergence of painted pottery. In 1928, the first black pottery was found in Zhangqiu County, Longshan Town. As for its cultural heritage, archaeology called 'Longshan culture'. According to the results of radiocarbon dating, these vessels can be dated back to 2500 BC – 2000 BC. Estimated age: 20th century, based on the marks on the bottom. Condition: very good condition, no cracks, no repairs, no restorations. Dimensions: Vase 1: 10 cm diameter x 15.5 cm Vase 2: 10 cm diameter x 15.5 cm Vase 3: 16 cm diameter x 36 cm Vase 4: 9.5 cm diameter x 16.5 cm Vase 5: 8.5 cm diameter x 17.5 cm Vase 6: 8 cm diameter x 16.5 cm Vase 7: 8 cm diameter x 17 cm Vase 8: 8 cm diameter x 16 cm.