In the oldest Roman ferial we already find festivals of Carthaginian martyrs, and similarly, in the Carthaginian calendar, Roman festivals, while Wright's Syriac Martyrology contains numerous traces of this exchange of festivals.
In the Hebrew Bible Lamentations is placed among the Cetubim or Hagiographa, usually as the middle book of the five Megilloth or Ferial Rolls (Canticles, Ruth, Lamentations, Ecclesiastes, Esther) according to the order of the days on which they are read in the Synagogue, Lamentations being read on the 9th of Ab (6th of August), when the destruction of the Temple is commemorated (Mass.
In the lessons, as in the psalms, the order for special days breaks in upon the normal order of ferial offices and dislocates the scheme for consecutive reading.
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