Original sentence: The former lower part of its course had flowed into the Adriatic Sea near Adria until the bursting of the Cucca banks in 589, roughly following the course of the river that is currently known by the name of Canal Bianco; it had been a waterway from the sea to the lake until then
Edited sentence: The former lower part of its course had flowed into the Adriatic Sea near Adria until the breach at Cucca in 589, roughly following the course of the river that is currently known by the name of Canal Bianco; it had been a waterway from the sea to the lake until then