The Titanic's passengers were divided into three separate classes, determined not only by the price of their ticket but by wealth and social class: those travelling in first class, most of them the wealthiest passengers on board, included prominent members of the upper class, businessmen, politicians, high-ranking military personnel, industrialists, bankers, entertainers, socialites, and professional athletes. Second class passengers were middle class travellers and included professors, authors, clergymen, and tourists. Third class or steerage passengers were primarily emigrants moving to the United States and Canada.[4]