The 'Semu' (色目 in
Chinese characters) Contrary to popular definition, the term "Semu" (literally "color-eye") actually does not mean people with "colored eyes" as if other castes of the Mongol Yuan society had black eyed in contrast. It in fact meant "各色名目" (ge4 se4 ming2 mu4, "assorted categories"), emphasizing the fact that these categories applied to races from outside of Yuan Khanate proper, having come to serve the Yuan by enfranchising under the dominant
Mongol Caste. The Semu were not a self-defined and homogeneous ethnic group per se, but one of the four
castes of the
Yuan Dynasty: the
Mongol Caste,
Semu Caste,
Khitay Caste ("
Hanren " in Chinese) and
Manji Caste ("
Nanren" in chinese). Among the Semu were Buddhist
Turpan Uyghurs,
Tanguts,
Tibetans; Christian
Assyrians,
Russians,
Alans; Muslim
Persians,
Arabs and various Islamic
Turkic peoples including the
Khwarazmians and
Karakhanids. While administratively classified as Semu, many of these groups rather referred to themselves by their self-aware ethnic identities in everyday life, such as
Uyghur. Muslims, Persians, Karakhanids and Khwarazmians in particular, were actually mistaken to be
Uyghurs or at least, "from the land of the Uyghurs". Therefore they adopted the label conferred to them by the Chinese: "
Huihui" (see
Hui), which was a corruption of the name Uyghur, but at the same time distinguishable from the name reserved for Buddhist Turpan Uyghurs proper, "Weiwuer". Of the many ethnic groups classified as "Semu" during the Yuan, only the Muslim
Huihui managed to survive into the
Ming period as a large collective identity with self-awareness of common identity spanning across the whole China. Other ethnic groups were either small and confined to limited localities (such as the Muslim Turpan Uyghurs in
Wuling,
Hunan, and the Babylonian Jewry of Kaifeng, see
Kaifeng Jews), or were force to assimilate into the
Han Chinese or Muslim
Huihuis (such as some Christian and Jewish Semu in the Northwest, who, though thoroughly Islamicized, still unto this day retain peculiar labels like "Black Cap/
Doppa Huihui", "Blue Cap Huihui"). Among the Huihui, or
Hui, there were in fact Muslim lineages that have migrated to China via Central Asia or by sea route prior to the Yuan migration of merchants, adventurers, craftsmen and service men from the
Muslim World to China. These Muslims were not previously known as
Hui, but have come to associate themselves with the "Muslims from the land of the Uyghurs" by the mere fact of common religious identity. "Hui" has thus become synonymous with the Islamic religion in the Chinese language since the Ming period (but not before that). Besides identifying themselves as Huis, the Semu Muslims of the Yunnan province, especially those descended from the
Khwarazmian statesman
Sayyid Ajjal Shams al-Din Omar, or
Sayyid Ajjal, came to be labeled as
Panthay wherever they migrated to in Southeast Asia, including
Myanmar and
Thailand. This name
Panthay is particular to the
Yunnan Huis and is not shared by
Huis in other parts of China such as
Fujian and
Ningxia.
Zheng He is probably the best-known
Panthay Hui in the West. The learned Semu, including scribes, interpreters and statesmen who served the Mongol military class, were known for their contributions to Chinese literature and sciences. Many of them became masters of Chinese poetry and also helped compose state-commissioned historical works on previous dynasties. Their privileged position in the Yuan bureaucracy was in part due to the Mongol military class's distrust of the native Khitay and Manji subjects. One such Yuan Semu mandarin and poet was
Guan Yunshi, a Turk of disputed origin. After the fall of the Yuan, many Semu intellectuals, soldiers, due to their less entrenched loyalty to the Mongols, also became quickly assimilated into the Ming political culture and became prominent mandarins and aristocrats. Some no longer retained separate ethnic identity and became Han Chinese, others still served the Ming court as Muslim Huis. The Ming court's tolerance for loyal Muslims and respect for their practices and ethnic identity partially explains the strength and vitality of the Muslim Hui community in modern China, compared to other Semu groups such as the Christians and Jews.