First of all, I am not defending that reference. If you want to remove it because of the source, be bold and remove it. I am just saying it is correct. As regards the name Italia, the name was used initially to indicate the zone from Tuscany to  Calabria – apart the Italic peoples you referred, also the Greeks living in the peninsula were called italòs by those living in Sicily. This is not against the sentence we are writing of, since it simply says that the name was used for this part of country for more than 25 centuries. Will you admit that this is true, at least? (just as side node, indent your text, it is easier to read the 'thread'). As regards Hungarian and Polish names: your point would be interesting, if supported with etimologies of those words, otherwise it is impossible to judge.   

  
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