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"The Histomap" by John B. Sparks, published 1931
(www.visualcapitalist.com)
It is certainly not perfect, but still an impressive piece of work.
And here is a version embedded in a web page so it scales to your browser window's width.
It's good branding. "China," as we think of it, fragmented into states that recombinated into different versions of what they each claimed to be the rightful empire, many, many times. It's like a ship of thesius thought experiment, almost, but sometimes the boat is a pile of wood, sometimes it's a galleon, other times it's a fleet of smaller boats.
And sometimes it's Turkish. (Sorta)
Source: degree in Song Dynasty era Chinese history. (It's a long story)
The empire, long divided, must unite; long united, must divide. Thus it has ever been.
-Romance of the Three Kingdoms
So a bit like the holy Roman empire?