The origin of the spritz: the typical venetian aperitif dates back to the times when the domains of the Serenissima Republic were invaded by the Austrian empire. It is said that the Austrian soldiers loved to stretch the white venetian wines with sparkling water to dampen the alcohol content. Hence the origin of the name spritz, from spritzen, to sprinkle in German.
And here is a venetian speciality, proposed by Caffè Florian:
Spritz l’Aperitivo Veneziano
Aperitivo Rosso, prosecco and seltz