 Through comparison of a huge amount of words without convincing etymology in European languages, he supposes that these originated in Mesopotamia, from the Akkadian and Sumerian languages.According to his supporters, Semerano's works have helped better understand the story of all European languages, not only the ancient and classic ones like Greek, Latin and Etruscan, but also all other languages and dialects, both modern and ancient, in Italy and Europe.He is extensively quoted by Jacques R. Pauwels in his 2009 book, "Beneath the Dust of Time" - also a non-linguist.