Sometimes considered one of the originators of the Samaritan sect, he probably lived in the 1st century CE.
K. Kohler, Dositheus, the Samaritan Heresiarch, and His Relations to Jewish and Christian Doctrines and Sects: A Study of Professor Schechter's Recent Publication, American Journal of Theology, vol. 15, no. 3 (July 1911), pp. 404-435.