ལྕགས་ཕོ་སྟག་ལོ་ (male Iron-Tiger) −263 or −644 or −1416 — to — ལྕགས་མོ་ཡོས་ལོ་ (female Iron-Hare) −262 or −643 or −1415
Year390 BC was a year of thepre-Julian Roman calendar. At the time, it was known as theYear of the Tribunate of Ambustus, Longus, Ambustus, Fidenas, Ambustus and Cornelius (or, less frequently,year 364Ab urbe condita). The denomination 390 BC for this year has been used since the early medieval period, when theAnno Dominicalendar era became the prevalent method in Europe for naming years.