old style calendar

1 definition found

old style calendar - WordNet (r) 2.1 (2005) :

  Old Style calendar
      n 1: the solar calendar introduced in Rome in 46 b.c. by Julius
           Caesar and slightly modified by Augustus, establishing the
           12-month year of 365 days with each 4th year having 366
           days and the months having 31 or 30 days except for
           February [syn: Julian calendar, Old Style calendar]