Venice didn’t appear out of nothing – there was something before which led to the Venice we know as the Serenissima.
This document is the earliest description of the translation of St Mark to Venice in 827–828, and also of early Venice. This is the original Latin text.
The Venetian people were indigenous, and already present on the territory before Roman times. The Republic of Venice appeared out of the tumultuous centuries in late Antiquity and the early Middle Ages. Invasions The earliest times Legends Sources Venetian Stories
Archaeological digs in the Piazza San Marco have uncovered parts of the ancient church of San Giminiano and a grave of four persons
Dr Sandra Toffolo of the University of St Andrews has found a drawing of Venice from the 1300s in a manuscript in Florence
Venice was an independent state for almost a millennium, but it might note have been. It all hinged on a single battle fought in the Venetian lagoon in 810.
The Birthday of Venice of is traditionally on March 25th, 421 CE, but this is far more legend than historical truth.