Well, I know this post is kind of stepping into geopolitics territory, but it need to be done.
Currently, the tag Taiwan is used as a sort-of umbrella term for the republican Chinese country that's now ruling over the titular island, along with when they are still ruling the mainland as the "Republic of China".
While the "Republic of China" in 1920 and "Taiwan" in 2022 is still technically the same country, the tag "Taiwan" is not an accurate description of the Kuomintang regime's rule over the mainland prior 1949. And especially since a considerable amount of Taiwanese prefer to stay away from the "One China" policy and prefer to consider the country a different entity from the mainland communist China rather than a "disputed government". I think some clarification is needed when a post explicitly mentions pre-1949 ROC.
Two current solutions I can think of is to either make an alias "Republic of China" to the "Taiwan" tag to imply that they are, in fact, the same country. Or to make a separate "Republic of China" tag to differentiate between the government prior and after 1949.
Any thoughts?