Given that Kal. Ian. A.U.C. 702 = 19 November 53 was a market day, and given the known absolute synchronism for A.U.C 586 = 168 we can calculate that the nundinal letter for the market days at the end of A.U.C. 585 was

C.Livy 43.16.12 reports that the censors Ti. Sempronius Gracchus and C. Claudius Pulcher were scheduled to be tried for treason before the

comitia centuriataon a.d. IX and VIII Kal. Oct. A.U.C. 585 = 169. These are days with nundinal letters ofDandErespectively. Therefore the nundinal letter was notDorE. If there was no intercalation at the end of A.U.C. 585 = 169, then the nundinal letter for Sept. A.U.C. 585 = 169 wasF. If there was a 22 day intercalation it wasD. If there was a 23 day intercalation it wasE. Therefore there was no intercalation at the end of this year.Since the Julian dates of A.U.C 586 = 168 are known, this fixes the Julian dates of A.U.C. 585 = 169.

We can crosscheck this with the data for A.U.C. 584 = 170. Since this year is known to have ended with an intercalation of 23 days, the result for A.U.C. 585 = 169 gives the nundinal letter for Februarius A.U.C. 584 = 170 as

E. Livy 43.11.6 reports that the elections for A.U.C. 585 = 169 were held on a.d. V Kal. Feb. and a.d. III Kal. Feb. of A.U.C. 584 = 170, days with nundinal letters ofBandDrespectively.Conversely, if there was a 22 day intercalation at the end of A.U.C. 585 = 169 then the nundinal letter in Februarius A.U.C. 584 = 170 was

C, and if there was a 23 day intercalation it wasD. Therefore, independently of the data for the trial of the censors, we may conclude that there was not a 23-day intercalation at the end of A.U.C. 585 = 169.Website © Chris Bennett, 2001-2011 -- All rights reserved