1911 Encyclopædia Britannica, Volume 26… (1911)
“ Later tradition, originating with the Acta Thomae, and accepted by catholic teachers from the middle of the 4th century, makes him proceed to India and there suffer martyrdom. The Indian king Gundaphar of the Acta is, however, certainly identical with the historical Gondophares, whose dynasty was Parthian, though his realm included regions loosely reckoned to India. The Parthian and Indian missions of Thomas may perhaps therefore be regarded as derived from a single tradition, but it is very doubtful whether it is based on any historical facts. ”
