A Jewish merchant and traveler of the 9th century. His letters seem to be the earliest source to hold out the promise that the ten (or nine and one half) lost tribes of Israel might be possible to locate. His letters foreshadow and probably inspired the Prester John letters of the 12th century.
Micha Perry, The Imaginary War between Prester John and Eldad the Danite and Its Real Implications, Viator, vol. 41, no. 1 (2010), pp. 1-24.
L. Rabinowitz, Eldad Ha-Dani and China, Jewish Quarterly Review, n.s. vol. 36, no. 3 (January 1946), pp. 231-238. Hebrew spelling of the name for China is Tsin. Jewish traders in China were mainly based in Persia.
