Large Sunken Island Existed off Bulgaria’s Black Sea Coast till Middle Ages, According to Roman Era Maps, Geomorphology Research

A sizable but now destroyed and/or sunken island – likely the size of Greece’s Aegean island of Thasos – existed in the Black Sea off the southern Black Sea coast of today’s Bulgaria but disappeared as a result of natural … Continue reading Large Sunken Island Existed off Bulgaria’s Black Sea Coast till Middle Ages, According to Roman Era Maps, Geomorphology Research