阴水兔年 (female Water-Rabbit) −370 or −751 or −1523 — to — 阳木龙年 (male Wood-Dragon) −369 or −750 or −1522
Year 497 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Atratinus and Augurinus (or, less frequently, year 257 Ab urbe condita). The denomination 497 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
^Edwards, Iorwerth Eiddon Stephen; Gadd, Cyril John; Hammond, Nicholas Geoffrey Lemprière; Boardman, John; Lewis, David Malcolm; Walbank, Frank William; Astin, A. E.; Crook, John Anthony; Lintott, Andrew William (1970). The Cambridge Ancient History. Cambridge University Press. p. 485. ISBN978-0-521-22804-6.