Through carbon-14 dating, it has been confirmed that the pottery shard found it Dinggong is from about 2200 BC (with a margin of error of plus or minus 100 years), or about 4200 years ago. This pushes back the origin of Chinese characters by almost another 1000 years.
丁公村發現的陶片，經過「碳十四」的科學測定，年代約在西元前二千二百年（誤差正負一百年），距今約四千二百多年，將中國文字的起源往前推了近千年。