Posts: 31,747
   
Threads: 8,633
    
Likes Received: 5,442 in 4,932 posts
Likes Given: 2,186
Posts: 31,747
   
Threads: 8,633
    
Likes Received: 5,442 in 4,932 posts
Likes Given: 2,186
Conclusion
Quanzhou dialect was the form of Old Chinese spoken during the Western Jin dynasty whereas Zhangzhou dialect was the Henan dialect spoken during the early Tang dynasty because the latter migrated much later (around 360 years apart) to southern Fujian.
Xiamen dialect narrowed the linguistic differences between Quanzhou and Zhangzhou making them different dialects instead of different languages due to increased mutual intelligibility.
The literary layer of Quanzhou language originated from Tang dynasty court language.