Note 189 — Chapter XXXVII
Reading edition
The name is found on Champan inscriptions of 1050 A.D. and according to Gerini appears in Ptolemy's Samarade = Sâmaraṭṭha. See Gerini, Ptolemy, p. 170. But Samarade is located near Bangkok and there can hardly have been Tais there in Ptolemy's time.