Today it is Dies Neastus Publicus – the regular working day on which modern Romans may do their daily businesses – both civic and religious. It is OK to sign contracts, travel, start new projects, worship the Immortals, etc.
It is the 6th day before Idae Decembres.
It is the A nundial day, the third day before Nundinae – the market day this year.
Today Romans celebrate the festival of Agonalia it was an obscure archaic religious observance celebrated in ancient Rome several times a year, in honor of various divinities. Its institution, like that of other religious rites and ceremonies, was attributed to Numa Pompilius, the semi- legendary second king of Rome. Ancient calendars indicate that it was celebrated regularly on January 9, May 21, and December 11. A festival called Agonia or Agonium Martiale, in honor of Mars, was celebrated March 17, the same day as the Liberalia, during a prolonged “war festival” that marked the beginning of the season for military campaigning and agriculture. The object of this festival was a disputed point among the ancients themselves, but as J.A. Hartung observed, the offering was a ram (aries), the usual victim sacrificed to the guardian gods of the state; the presiding priest was the rex sacrificulus, and the site was the Regia, both of which could be employed only for ceremonies connected with the highest gods that affected the wellbeing of the whole state.
