made with GIMP; background from demis.nl Mapper.^{[失效連結]};

• Update: Labeled Asandivat and Mithila, as per the identifications with modern Assandh and Janakpur, respectively, in H.C. Raychaudhuri (1972) (and in the relevant Wikipedia articles)
• September 2015 Update: Expanded to reflect data on page 4 of Witzel (1997)

Sources used in May 2020 update: mainly Witzel (1990), "Notes on Vedic Dialects" [1], p.42; also with reference to Samuel (2010), The Origins of yoga and Tantra, and Bronkhorst (2007), Greater Magadha. List of other source materials:

• Schwartzberg, J. E. (1992年) 《 Historical Atlas of South Asia》、​University of Oxford Press OCLC： 929640075.
• Staal, F. (2008年) 《 Discovering the Vedas: Origins, Mantras, Rituals, Insights》、​紐約： Penguin、​第347頁 ISBN： 9780143099864.
• Witzel, M. (1987年) "On the localisation of Vedic texts and schools (Materials on Vedic Śākhās, 7)" in Pollet, G. , ed. 《 India and the Ancient world. History, Trade and Culture before A.D. 650》、​Jubilee Volume、​魯汶： P.H.L. Eggermont OCLC： 1089172707.
• Witzel, M. (1999年) "Aryan and non-Aryan Names in Vedic India. Data for the linguistic situation, c. 1900- 500 B.C." in J. Bronkhorst; M. Deshpande , ed. 《 Aryans and Non-Non-Aryans, Evidence, Interpretation and Ideology》、​Harvard Oriental Series、​Opera Minora 3、​劍橋 OCLC： 671955255.
• Raychaudhuri, Hemchandra (1972年) 《 Political History of Ancient India: From the Accession of Parikshit to the Extinction of the Gupta Dynasty》、​加爾各答： University of Calcutta OCLC： 247834106.
• Witzel, Michael (1997年) "Early Sanskritization Origins and Development of the Kuru State The State, the Law, and Administration in Classical India" in 《 The State, the Law, and Administration in Classical India》 (PDF)、​Schriften des Historischen Kollegs、​30、​柏林： Oldenbourg OCLC： 7354294539.