In July-September 2022, during an abnormal drop in the water level of Danube, near Izmail fortress at bottom river, on a plot 150-170×10-15 m depth 1 to 1.5 m, local historians accidentally discovered three clusters artifacts: fragments marble tombstones, Ottoman ceramics, forged iron elements rigging, as well remains hull small wooden sailboat and other finds (intact fragmented cast cannonball...