Ragu' or Bolognese?

In the UK we've all grown up with Spaghetti Bolognese thinking we were eating an authentic Italian dish! In general terms it's partially Italian but there are key differences! 

Ragu' alla bolognese which is the name of the meat sauce, is from Bologna. The Bolognese means something from Bologna. A local could say they are Bolognese, the same as my Husband is Milanese as he's from Milan.

It's served with tagliatelle not spaghetti. Spaghetti doesn't hold the thick sauce the way tagliatelle does.