Jiànníng

The Jiànníng are inland Min people of northern Fujian's Wuyi Mountains, centred on Jian'ou and Jianyang in present-day Nanping; their Northern Min speech is among Fujian's earliest Chinese dialects. After conquering Minyue in 110 BC and moving its people to the Yangtze–Huai basin, the Han settled Wu and Chu garrison troops in the Wuyi foothills, their eastern dialects blending with the indigenous Yue substrate.

In 203 the Han set up Jian'an commandery at present-day Jian'ou, northern Fujian's political centre, later renamed Jianzhou and Jianning. Fourth-century Yongjia refugees and the Wang brothers' late-Tang armies, founders of Min in 909, added further layers; in 943 Wang Yanzheng held Jianzhou as emperor of breakaway Yin. By the early Song the local speech was distinct from the dialects of Fuzhou and Quanzhou.

Mid-Ming uprisings led to the creation of Yong'an county from Shaxian in 1452, after which Shaxian and Yong'an dialects drifted into the separate Central Min group; in 1795 Jianning authorities printed the rhyme dictionary Jianzhou bayin recording Jian'ou pronunciation.