There is no true explanation as to why the peninsula formed in Europe other than erosion and change in sea levels over time. The name, however, can be explained simply by the location of the peninsula. The peninsula is occupied by the country of Italy and many refer to it as the Italian Peninsula, although another name for this peninsula may be the Apennine Peninsula.
Vatican
The Italian Peninsula
Iberian peninsula Italian peninsula Greece peninsula
In the South-West of Europe
The Adriatic Sea is located to the East of the Italian peninsula
the Italian peninsula
The Italian Peninsula
the alps, the iberian peninsula, the Italian peninsula, and balkan peninsula
Apennine Peninsula, Iberian Peninsula, Balkan Peninsula, Crimean Peninsula, Jultand Peninsula, Scandinavian Peninsula, Peninsula of Brittany. A few small ones: Kerch Peninsula, Attican Peninsula, Thracian Peninsula, Campanian Peninsula, Peloponnesian Peninsula.
San Marino is the tiny country located in the Italian peninsula which is the smallest republic in the world. It also claims to be the oldest state in Europe, having been founded in 301 AD.
The Italian Peninsula.
Iberian Peninsula, Italian Peninsula and Balkan Peninsula.