What's in a name? That which we call a rose by any other name would smell as sweet. These lines by William Shakespeare in Romeo and Juliet have often been used as an example to reduce the importance of names. But it is names over which business houses have split, brothers have fought in courts, and political parties have broken into factions. Many countries have also changed their names. From Persia which became Iran; to Prussia, parts of which are now Germany and Poland; to Swaziland which is the most recent. The reasons for these changes are many from historical, to geographical, to political. Here's a look at why some countries changed their names: recently.