According to textual research, the Han people in the Central Plains had contacts with Cantonese people in Lingnan since the Western Zhou Dynasty, but the contacts between them were extremely limited because Lingnan was close to Wuling at that time. In the 25th year of the Qin Dynasty (222 BC), Qin Shihuang conquered Guangdong and Guangxi in the south and sent hundreds of thousands of Qin Jun to attack Baiyue in the south. According to Huai Nanzi? Recorded in human training? The ridge of Yucheng? Refers to Yuechengling in Guangxi today; And then what? Nine doubts? , refers to today's southern ningyuan county, Hunan Province; ? Canal? , that is, Lingqu. The two armies opened the Lingqu and then entered Lingnan via Lijiang and Hejiang. Lingqu connects Xiangjiang River and Lijiang River, becoming the first main passage for Han people in the Central Plains to enter Lingnan. At the end of Qin Dynasty, Zhao Tuo, a Han Chinese, established Nanyue State in Lingnan area, and his appointed officials were basically Cantonese from the prime minister down. Zhao Tuo himself changed his clothes, living habits, language, and put himself? Alienation? Adult Cantonese are easy to treat. After Panyu became a state, the influence of Han people extended to the lower reaches of Xijiang River and the Pearl River Delta. After that, the imperial court gave a large number of titles to local Cantonese to be public officials, princes, officials to generals, secretariat officials, satrap officials, county magistrates and so on. This is objectively beneficial to the further integration of Han people and Cantonese people. Under such favorable conditions, the culture and language of the Han nationality spread eastward from the middle reaches of the Xijiang River. It is precisely because Cantonese has retained the characteristics of the Central Plains Chinese before the Southern and Northern Dynasties since its formation that it has not been further assimilated by the northern dialects after the passage areas such as Xijiang River Basin and Pearl River Delta. ?
Based on the above arguments, we can see that the language spoken in the Qin Dynasty is not Cantonese, but the elegant language of the Central Plains which is somewhat similar to Cantonese. Is it because Qin Jun went south to Lingnan? Sanpang? . So don't comment that Cantonese is an old saying, because it is not the ancients who speak the old saying, but the Cantonese.