11. She was placed [ here ] 15 days before the Kalends of May [ 17 April ]. 12. It is followed for eight days after the solstice with a festival called Kalenda culminating with the Kalends of January. 13. Columella specifies that sloping ground should be ploughed between the Kalends ( 1st ) and the Ides ( 13th ). 14. The remaining, unnamed days of the month were identified by counting backwards from the kalends , nones or the ides. 15. The rite took place on the kalends of October, the month marking the end of the yearly military activity in ancient Rome. 16. The first day of the month was the Kalends ( or Calends, from which the English word " calendar " derives ). 17. All the chroniclers agree on the date variously expressed as 18 April, 14th kalends of May or the feast of Saint Ursmar. 18. Sept . ", " the 8th day before the Kalends of September, " but on the Julian calendar " X Kal. 19. In 1-12 " Kalends of February " Cassius is plotting the downfall of Caesar, along with Brutus, Servilia, Casca and Quintus Pompey. 20. The name might have been derived from the Latin " Kalendae " or Kalends , the first day of the month in the Roman calendar.