I would say the south eastern part of china has been relatively recognizable borders for a long time. Modern china is the result of Qing expansion around the 16

I would say the south eastern part of china has been relatively recognizable borders for a long time. Modern china is the result of Qing expansion around the 1650s. Take a look at the historical map by year - it's really amazing how quickly things changed at the turn of the century. https://www.youtube.com/watch?v=UWqVzZnwnOk https://www.youtube.com/watch?v=UWqVzZnwnOk