Guangdong Guangxi is now generally collectively called "two Guangzhou", which is actually the abbreviation of Guangnan East Road and Guangnan West Road in the Song Dynasty, but what does this "Guang" word mean? The "mountain" in Shanxi, Shandong is the Taihang Mountain, and the "lake" in Hubei, Hunan is Dongting Lake, what is this "Guang"? It is actually the Guangxin of the Han Dynasty, when Emperor Wu of the Han Dynasty pacified the State of South Vietnam, he set up Jiaozhou to manage here, indicated
: The beginning of Guangdong, Yiguang Buenxin.
Han Dynasty officials named the center of this area Guangxin, which was located in present-day Fengkai County, Guangdong to Cangwu County, Guangxi.

The Song Dynasty divided Guangnan Road into Guangnan East Road and Guangnan West Road, from which the names "Guangdong" and "Guangxi" were derived.
Now the territory of the two Guangzhous still looks relatively regular, but in the Ming Dynasty and the Qing Dynasty, the territory of Guangdong and Guangxi is very strange, let's look at the Ming Dynasty.
This is the map of the Ming Dynasty Guangdong Envoy Division, Hainan belongs to Guangdong everyone knows (Hainan was not established as a province until the late 1980s), but how can Guangdong and the west of Guangxi be so strange.
Looking at the Qing Dynasty, in fact, the Qing Dynasty and the Ming Dynasty are similar, and guangdong in the Qing Dynasty is like this. To the west stands a large area of the Lianzhou capital.
This continued until the Republic of China, look at the situation of the two Cantons during the Republic of China.
As you can see, the general situation is actually the same, but the westernmost part of Guangdong seems to extend to Guangxi, so it seems unusually abrupt, what is going on? Obviously, during the Song Dynasty, there was nothing strange about it.
In fact, this is the Ming Dynasty did, in the Yuan Dynasty, the two Guangdong did not have independent administrative divisions, most of Guangdong belonged to Jiangxi Province, while Guangxi and Hainan Island belonged to Huguang province, until the end of the Yuan Dynasty to reset Guangxi Province, the Ming Dynasty re-set up the establishment of Guangdong, this has two Guangzhou, but the two Guangzhou at this time, in fact, and the territory we see today is almost the same.
The administrative divisions of the Yuan Dynasty were rather rough, and Guangdong and Guangxi did not have independent administrative divisions for a long time
However, at that time, the southwest frontier area was not stable, and the mountain minorities frequently provoked rebellion, and in order to solve this problem, Zhu Yuanzhang did a bold thing, in order to play the role of dividing and ruling, Zhu Yuanzhang assigned the Hainan Island (Qiongzhou Capital) where the Li people were concentrated and the two prefectures of Qin and Lian, the gateway of Guangxi, to Guangdong! This led to such a strange administrative division of liangguang. Moreover, this administrative division continued until after the founding of the People's Republic of China.
That is to say, in the Ming and Qing dynasties and the Republic of China period, almost 600 years, Guangxi is not coastal at all, but an inland province, which is of course a very humiliating thing for Guangxi, because there is no sea outlet for a long time, the geography is remote, so guangxi's development has been greatly restricted, so from the beginning of the Republic of China, some important officials in Guangxi have demanded that Qinlian and other places be reclassified to Guangxi, but the Republic of China is in a mess, and it does not care about this file at all.
This Lianzhou capital (which included Qinzhou at the time) was really an extremely embarrassing thing for Guangxi
It was not until after the founding of the People's Republic of China that the central government carried out a series of redivisions of the jurisdiction of Liangguang, and from 1951 to 1955, Qinzhou and Lianzhou (present-day Qinzhou, Fangchenggang, and Beihai) were transferred from Guangdong to Guangxi. In 1952, Huaiji was transferred from Guangxi to Guangdong. From 1955 to 1965, Qinzhou and Lianzhou were again included in Guangdong. In 1965, Qinzhou and Lianzhou were once again assigned to Guangxi.
At the same time, after the founding of the People's Republic of China, another problem was solved - Huaiji, Huaiji County. Liu Song Yuanjia set up a county in the thirteenth year (436), and since the establishment of the county, it has belonged to Guangdong for 800 years and Gui for 700 years. The Qing Dynasty belonged to Wuzhou Prefecture, because its western boundary was only connected to Pingle Province, so it was an enclave of Guangxi Wuzhou Prefecture stuck in Guangdong, so it was assigned to Guangdong just to make up for Guangdong.
This is actually to take care of Guangxi, because Guangdong has its own coastal ports (that is, the Beibu Bay area that Guangxi is very interested in now), there is no need to rely on these places, but it is very difficult for Guangxi to go out, so these places belong to Guangxi more appropriately, since then, Guangxi is stable, "restoring" most of the land lost by the Ming Dynasty, but it has not been fully restored, because the Leizhou Peninsula and Hainan still belong to Guangdong (Hainan was established as an independent province).
As a result, the two Cantons have the current situation.