Another sketch from the Cassini project.
First, the rules for naming places.
They keep the name from Earth. China is China, Britain is Britain. The city on the Bosporus is Istanbul.
When a direction has already been translated into English, they keep the name from Earth. Australia is Australia.
When a direction is still used in English, it changes to match the direction on Cassini. The North Indies and West America.
If a climate type is associated with a location, it changes to match conditions on Cassini. Arctic now means tropical, Indian implies polar conditions.
The notes on the map are roughly how the different regions are in comparison to Earth, something to work around. The colors are rough depictions of cultural regions, and anachronistic too.
The *Roman Empire was based on the Yalu River, and later the Amur River as well, and they eventually controlled Korea, Japan, the coast of the Inner China Sea, Taiwan, and the north tip of Kamatchka; and later expanded to the Lake Baikal and Lena River region, while losing Japan, Korea, and Taiwan; and finally ended up centered on Lake Baikal until conquered by adventuring Arctic Sea Peoples, with the rest of the territories controlled by Yalu-esque locals. The last physical holding was Petropavlosk, which would have been mostly independent for a long time, surviving as a trading city-state, most similar to Arctic Sea People city-states. In modern times it's a Yalu (*Roman)-majority city in the majority Bear nation-state of Kamatchka. The Emperor of China traditionally claims descent from the Yalu Emperors, but this is considered dubious, even by Imperial historians.
China Proper 'Francia' includes *North China, the Chinese Islands (Taiwan, Shandong, Hainan, a few smaller ones), Sichuan, and
usually Manchuria/Mongolia and Tibet/India. Historically it was something between Europe and China, remaining semi-united for about as much time as it has been semi-disunited. During the Age of Discovery, it transitioned from united to disunited, producing a situation where various Chinese states engaged in competition over colonial lands, and allowing the Fringe states (Japan, Korea, Amuria, even
Borneo!) to dominate China Proper for some time. This was followed by a uniting phase, expelling foreign control, and exiling the Exiles. In the modern day it's a dozen states in an EU/USA type arrangement.
For the North Indies, they were populated by earlier migrations out of China, and so share some similarities in culture. Borneo eventually became 'mix of Occidentals who never replace a dizzying array of natives', all united in a single, unitary state. The Philippines were routinely invaded and traded by Occidental powers as they developed seafaring technologies, but were able to maintain a kind of cultural independence.
Japan, Korea, and Amuria are on the fringe of Occidental Civilization, their history since the Yalu Empire collapsed was focused on interaction with Siberian and Arctic Sea Peoples, not on the internal politics of China Proper, Occidental Civilization. They only rejoined mainstream Occidental Civilization during the Australian bonanza. New Guinea and Borneo are also sometimes considered Fringe states, but unlike the traditional three, they were never part of the Yalu Empire. In modern times, New Guinea or Borneo are where Occidental tourists go when they want to visit somewhere very different, but where everyone has passable Occidental (the written lingua franca of Occidental Civilization), something made far easier by the proliferation of smartphones.
Australia was colonized by everyone, the discovery that it was an
entire continent reached China just as the developments that would allow ocean travel were made in China. The Emperor had some missions there, so did Occidental Kingdoms under the Emperor, so did Japan, Korea, and Amuria, so did Petropavlosk, so did religious and military orders, so did trading companies, as well as private individuals. Between the lake and the south coast is a desert, but just south of the mountains is a lush rainforest, perfect for Bear crops, and so Australia was also colonized by Arctic Sea Peoples. Eventually it becomes a more unitary version of the USA, with a range of policies and economies on the continent similar to that found in North America, but all in one state.
California was also eventually colonized by everyone, through the auspices of the initial colonists, an exiled caste of sailors known as 'the Exiles'. During the Age of Discovery they were a merchant marine and mercenary firm that grew to dominate many kinds of trade. In the era when China Proper was dominated by outside powers, the Exiles were considered to be loyalists, smuggling goods and people around under the nose of the occupying forces. The Emperor who eventually drove out the foreigners was not fond of the Exiles, and one of their first acts was to expel them. At this point, they retreated to one of their colonies, and continued to do just what they had been doing, controlling the black market under the Imperial nose this time. The Exiles enjoy good relations with the natives, with most of their population on reclaimed or marginal lands improved by the Exiles, not on land taken from natives. The society of the Exiles is such that anyone can join, even natives. Disproportionate influences from Occidental Civilization include Petropavloski's, many fled during the many crises the city has faced, and half went south, and from ethnic and religious minorities in China Proper, and from Japan, Korea, and Amuria, as well as secondary colonists from Australia. Salt Lake (which I think becomes a real lake in this world when I have climate cracked) is the center of a religious population, something between Buddhists and Mormons.
Sichuan expanded around the northern regions around Burma, and the various Manchurian/Mongolian groups expanded into the Tarim Basin, both very gradually exploring across the Tibetan Ice-Cap. In modern times the whole region is sparsely populated, a territory of Sichuan that stretches to Gujarat.
Next phase is either a map of 'expansion of *homo sapiens', or 'modern day borders of Occidental Civilization', or a completed 'clash of civilizations' type map. The climate stuff is simmering along, but nothing new or different from
the initial thread.