1 The U.S. Census Bureau definition of Asians refers to a person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent. 
2 The United States Government classified Kalmyks as Asian until 1951, when Kalmyk Americans were reclassified as White Americans.
3 The US Census Bureau reclassifies anyone identifying as "Tibetan American" as "Chinese American".
4 Bengali Americans may be classified as Bangladeshi or Indian. Punjabi Americans may be classified as Indian or Pakistani. Tamil Americans may be classified as Indian or Sri Lankan.
5 The US Census Bureau considers Afghanistan a South Asian country, but does not classify Afghan Americans as Asian.