And is Tuscan regarded as a dialect or as a language by modern Italian linguists?
I am interested mostly in its lexical peculiarities, but some interesting features of syntax would be of a great value, too.
The main thing is that the features should make this dialect different from other varieties of Italian and/or other Romance dialects/languages.
Please notice that the phenomenon of Tuscan gorgia is already known to me.
Have there ever been literature written in this dialect (and not in the Italian per se, which, to the best of my knowledge, is also based on Tuscan)? Are there any documents to attest its development on time?