bissextile การใช้

• There is debate about the exact position of the bissextile day in the early Julian calendar.
• The effect of the bissextile day on the nundinal cycle is not discussed in the sources.
• There is no doubt that the bissextile day eventually became the earlier of the two days for most purposes.
• For example, in 1836 the full title was " The Ladies Diary, For the Year of Our Lord 1835, Being the Third After Bissextile.
• The full title of the book was  Chater's " Canny Newcassel " Diary and Local Remembrancer, For Bissextile or Leap-Year, 1872.
• The leap year was called " Sextile ", an allusion to the " bissextile " leap years of the Julian and Gregorian calendars, because it contained a sixth complementary day.
• The Alexandrian calendar adapted the Egyptian calendar by adding a 6th epagomenal day as the last day of the year in every fourth year, falling on 29 August preceding a Julian bissextile day.
• This section always places the intercalary day on even though it was always obtained by doubling ( the " bissextum " ( twice sixth ) or bissextile day ) until the late Middle Ages.
• All later writers, including Macrobius about 430, Bede in 725, and other medieval computists ( calculators of Easter ), continued to state that the bissextum ( bissextile day ) occurred before the last five days of February.
• Also The Gentleman's Diary Or, The Mathematical Repository; An Almanack For the Year of Our Lord 1835 and 1836 Being The Third or Bissextile or Leap Year Containing many Useful and entertaining Particulars peculiarly adapted to the Ingenious Gentleman engaged in the delightful Study and Practice of the Mathematicks ".
• The table below assumes a Julian leap day of 29 February, but the Julian leap day ( the bissextile day ) was " ante diem bis sextum Kalendas Martias " in Latin or 24 February ( see Julian reform ), so dates between 24 and 29 February in all leap years were irregular.
• The leap day of the Byzantine calendar was obtained in an identical manner to the bissextile day of the original Roman version of the Julian calendar, by doubling the sixth day before the calends of March, i . e ., by doubling 24 February ( numbering the days of a month from its beginning and hence the leap day of 29 February was an invention of the late Middle Ages ).
• This may indicate that a single nundinal letter was assigned to both halves of the 48-hour bissextile day by this time, so that the Regifugium and the market day might fall on the same date but on different days . In any case, the 8-day nundinal cycle began to be displaced by the 7-day week in the first century AD, and dominical letters began to appear alongside nundinal letters in the fasti.