The so-called breach at Cucca (Italian: rotta della Cucca) traditionally refers to a flood in the Veneto region of Italy that happened on 17 October 589[1] according to the chronicles of Paul the Deacon. The Adige river overflowed after a "deluge of water that is believed not to have happened after the time of Noah";[1] the flood caused great loss of lives, and destroyed part of the city walls of Verona as well as paths, roads and large part of the country in lower Veneto.[1]
Flooding in 589 in Italy - Western Roman Empire. The consequence of the invasion of the Lombards. The location of the hydraulic breakthrough Rotta della Cucca (Breach at Cucca) is indicated. The city of Cucca is the modern city of Veronella. The breakthrough led to floods, breakthroughs of other dams and changes in river beds, provoking the "Domino Effect", which is why the port of Adria, which gave its name to the Adriatic Sea, was cut off from the sea for 22 kilometers inland. The invasion of the Lombards in the Western Roman Empire and the ruin of agricultural land. The Lombard king Authari had the goal of isolating large Italian cities such as Padua from Byzantine army based in Ravenna on South and franks army of Childebert II on north-west. Cucca was located on the territory of the Lombard duchy of Vicenza, founded by the Lombards to separate Padua from Ravenna. Repair and daily maintenance were stopped at dozens of dams and dams and irrigation canal locks.The sequence of formation of the meander. In 589, the Adige River formed a meander, which became a giant reservoir.Meander on Alagón river in Spain.
The tradition asserts that a breach opened in the banks of the Adige at Cucca, nowadays Veronella, about 35km SE of Verona.[2]
Contemporary historians think that the breach never really happened, and the tradition simply refers to the disasters due to the lack of maintainment of the streams that followed the fall of the Roman Empire.[citation needed] The Lombards did not repair the banks, and the waters of the Adige had been let free to flow through the lower Veneto for centuries,[2] in order to set a swamp on the borders with the Exarchate of Ravenna.
This point of view should be balanced against the worldwide disastrous climate changes of 535-536. Even though the dates do not exactly align, it is a fact that in that century there was at least "one year without summer", it is conceivable that the exceptionally bad weather conditions reported worldwide for that unknown year, whose consequences included skipped harvests and famine in places as far apart as Ireland, Scandinavia and China, constitute the real background also for this reported climate disaster.
Consequences
The hydrography of the lower Veneto had a dramatic change after the breach at Cucca: the river Adige no longer passed through Montagnana and Este, and instead was diverted south through Legnago;[2] centuries later, as the land dried up, it started following what had been the former course of the Chirola canal, passing through Badia Polesine and Cavarzere.
The Mincio river diverted to the south and has become a tributary of the Po river since then; it had been a waterway from the Adriatic Sea to the lake Garda until then.[2] The loss of this last significance contributed to the definitive decline of Adria and its port.[2]
The former lower course of the Mincio, that flowed into the Adriatic Sea by Adria, was still connected to the Tartaro.
The flooding, along with the subsequent capture by the Lombards of the city of Padua in 601, led to the movement of crowds of refugees into the Venetian Lagoon, whose population explosively increased, which led to the creation of the Venetian state.
Zemella, Rubis (1998) [1992]. La mia Polesella perduta (in Italian). A.V.I.S. di Polesella.
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