On Yuan Chwang's Travels in India, 629–645 A.D. v2.c23.s19.11

v2.c23.s19.11

The custom of flattening babies' heads, common to this country with Kuchih, is mentioned by other writers; so also are the tattooing, and the peculiar eyes. But instead of the "green eyes" which the pilgrim ascribes to the people other authorities represent them as having "turquoise pupils (碧瞳)". We are told also that all the inhabitants of this country were born with six fingers on each hand, and six toes on each foot.³