[The Mongolian?]
Since people with Down syndrome may have epicanthic folds, the condition was widely called "Mongol" or "Mongoloid Idiocy"[48] John Langdon Down, for whom the syndrome was named, claimed in his book Observations on the Ethnic Classification of Idiots (1866), that the Mongol-like features represented an evolutionary degeneration when manifested in Caucasoids. The use of the term "Mongoloid" for racial purposes has therefore acquired negative connotations because of the connection with Down syndrome.
It is. To refer to people from Mongolia. The country. "Pretending that you already know the answer when you don't is not actually very helpful." ~Migeru.