Studying the demise of historic civilisations

Studying the demise of historic civilisations
bbc.com

For example: Japan shares many characters with Chinese, and Korean and Vietnamese both used to use Chinese characters, but they are all separate languages. Similarly, numerous "dialects" in China are less mutually intelligible than many different Western languages. Compare Portuguese and Spanish to Cantonese, Mandarin, Taiwanese (Hokkien), Fuzhounese, Shanghainese, etc. Not to mention languages like Mongolian (see the Yuan dynasty). And that doesn't even begin to get into even more ethnically diverse regions like Tibet and western China.

Then there's also the "warring states period" when, for over 250 years, no fewer than 14 different independently governed states made up what is today eastern China.

Claims that China has always been one civilization are politically expedient versions of history that glaze over an enormous quantity of inconvenient facts.

Did you know that after the Ottoman Empire conquered Constantinople, Sultan Mehmed viewed himself as the successor of the Roman Empire and declared himself "Caesar of Rome"?

China today is as much a continuation of those previous states as Turkey is of the Roman Empire.

Not really. The Chinese tend to emphasize viewing their history through a lens of continuity and a single notional empire whereas the Western history tends to view their history as discontinuous and fractured empires. But when you start comparing the actual effects of these empires and their rises and falls, they are actually much more similar.

For example, after the Crisis of the Third Century, the Roman Empire was effectively partitioned into a Western and Eastern Empire. The Western Empire proceeded to decentralize itself out of existence over the course of the fourth and fifth centuries, but it recoalesced under the Merovingian and Carolingian dynasties into the Holy Roman Empire by 800 (before splitting up into effectively a Frankish kingdom and the Germanic kingdom of the HRE). The Eastern Roman Empire lasted until around 1200, when the Fourth Crusade conquered it instead (a conquest which didn't last, but the Byzantines never recovered and the Ottomans finally put them out of their misery 250 years later). It's worth noting that pretty much all of the people I've cited considered themselves the true heirs of the Roman Empire.

Meanwhile in China, the Han dynasty crashed hard in the early 200s, with three major successor states cropping up. One of these managed to conquer the others, so the successive dynasty was the Jin dynasty. Of course, the Jin last control of most of their territory, which fragmented into the Sixteen Kingdoms, but the entire era is still called the Jin dynasty. After the final collapse of the Jin, the north/south dichotomy continued with the Northern and Southern dynasties, which is again a successive series of powers vying for control eventually coalescing into the Sui dynasty after one wins out, which quickly transitions to the Tang dynasty, the first truly unified China since the fall of the Han dynasty. After about 300 years, the Tang dynasty collapses into a major period of disunity, the next truly unified China again taking 300 years to crop up again.

There's a lot of similarity. The major difference is that Western Europe never reunified into a single unitary state (unless you want to count the extremely short lived Napoleonic Empire and Third Reich). But Western Europe did have a successor state that directly retained the traditions from the Roman Empire (namely, the Byzantines) and could plausibly claim to have no break in continuity (the Byzantines never called themselves anything other than the Roman Empire), and all of the major successor states directly drew inspiration and customs from the Roman Empire, rather like China. The writing system, the state religion, the bureaucratic apparatus, the legal system--all of these are derived from the Roman Empire in Western Europe, just as much as they are derived from the Qin and Han dynasties in China.