You will have to do the rest on your own always choose January 1st for the dates for each classical civilization! (18 agos 323 anni a. C. – 14 apr 322 anni a. C.)
Aggiunto al nastro di tempo:
Data:
18 agos 323 anni a. C.
14 apr 322 anni a. C.
~ 1 years and 4 months