Northern Transylvania Transylvania, and in 1920 the Treaty of Trianon assigned Transylvania to the Kingdom of Romania. In June 1940, after Romania was forced (as a consequence of Molotov–Ribbentrop Pact) to settle a claim to the Soviet Union over Bessarabian and Bukovinian territories, Hungary attempted to regain Transylvania, which it had lost in World War I. Germany and Italy pressured both Hungary and Romania to resolve the situation in a bilateral agreement. The two delegation met in Turnu Severin but the negotiations failed due to a demand for a 60,000 square kilometers territory on Hungarian side and only a population exchange on
Transylvania Mounds and in height. The site underwent limited archaeological testing in the 1960s. These tests dated occupation of the site about 700–1200 CE during the Coles Creek period. Other ceramics discovered at the site were dated to 1200–1541 during the Plaquemine Mississippian period. A series of radiocarbon samples returned dates between 1048 and 1411 CE. These investigations prompted archaeologists to use the Transylvania site as the type site for the "Transylvania Phase (1500-1680 CE)" of the local Tensas Basin Plaquemine Mississippian chronology. When the site was mapped in 2000 investigators were able to identify six remaining mounds. Transylvania Mounds Transylvania Mounds