History of the Venetian lagoon, from the origins to the recent facts :
452 – Attile the Hun levels city of Aquileia: refugees flee to islands of Venetian lagoon
568 – refugees fleeing Lombards double lagoon’s population
697 – the parlamentari council proclaims Venice a Republic and elects the first Doge
829 – remains of St. Mark brought from Alexandria to Venice
999 – Holy Roman Emperor Otto III journeys to Venice and grants major commercial concessions
Once the basin of San Marco was the sea port of Venice and those who came by ship could admire the impressive unique architecture of Palazzo Ducale, seat of the Venetian power, and two marble and granite columns topped by the statues of the two patron saints of Venice: the winged Lion, symbol of St. Mark the Evangelist, and “Todaro“, the Byzantine St. Theodore of Amasea, who was the first protector of the city.