Although he has no proof to back it up, a Greek archaeologist who excavated the birthplace of Aristotle in northern Greece in the 1990s says a destroyed structure he discovered may have been the tomb of the ancient philosopher and teacher of Alexander the Great, CBS News reported Thursday. Konstantinos Sismanidis admits he has “no proof but just strong indications” to back up his theory, made a presentation at a conference marking the 2,400th anniversary of the philosopher’s birth. Aristotle (384-322 B.C.) was a pupil of Plato and one of history's most influential thinkers. Sismanidis said the structure unearthed in the ruins of Stageira, 43 miles east of Thessaloniki, was once a public...