Indeed, the above cited reviews of the Italian physics literature prove the point. It is impossible to say if Einstein ever saw the De Pretto article. All one can say with any assurance is that if Einstein indeed saw the article, Einstein's Italian language skills were strong enough that he could read it. When Einstein did publish his famous article in 1905 wherein he gave a variation of the famed " E=mc2 " formula, he titled this "discovery" in the form of a question. Published in November, 1905, in Volume 18, pages 639-641, the title of Einstein's paper was phrased as a question, "Does the Inertia of a Body Depend upon its Energy Content?”