Nundines or Nundinal Letters
Nundines Or Nundinal Letters.
The Romans used letters called literae nundinales, eight in number, to denote the dies profesti, nundinae, in their calendars. The nundins, or market-days, happened every ninth day. In imitation of them, the European nations have adopted seven dominical or Sunday letters, one of which denotes the Sunday throughout all the months of the year. SEE DOMINICAL LETTER.