books.google.it - Not much has happened in the Roman Empire since 1994 that required the first edition to be updated, but Bunson, a prolific reference and history author, has revised it, incorporated new findings and thinking, and changed the dating style to C.E. (Common Era) and B.C.E. (Before Common Era). For the 500...http://books.google.it/books/about/Encyclopedia_of_the_Roman_Empire.html?hl=it&id=T5tic2VunRoC&utm_source=gb-gplus-shareEncyclopedia of the Roman Empire
