The intercalary month or epagomenal days[1] of the ancient Egyptian, Coptic, and Ethiopian calendars are a period of five days in common years and six days in leap years in addition to those calendars' 12 standard months, sometimes reckoned as their thirteenth month. They originated as a periodic measure to ensure that the heliacal rising of Sirius would occur in the 12th month of the Egyptian lunar calendar but became a regular feature of the civil calendar and its descendants. Coptic and Ethiopian leap days occur in the year preceding Julian and Gregorian leap years.

Names

D2
D21		 G43M4X1
Those upon the Year[2][lower-alpha 1]
Ḥryw Rnpt[3]
in hieroglyphs
M4D2
D21		 G43N5Z1 Z1 Z1
Z1 Z1
The Five upon the Year[2][lower-alpha 2]
5 Ḥryw Rnpt[3]
in hieroglyphs

The English names "intercalary month" and "epagomenal days" derive from Latin intercalārius ("proclaimed between")[4] and Greek epagómenoi (ἐπαγόμενοι)[5] or epagómenai (ἐπαγόμεναι, "brought in" or "added on"),[6] Latinized as epagomenae. The period is also sometimes known as the "monthless days".[7]

In ancient Egypt, the period was known as the "Five Days upon the Year" (Ancient Egyptian: Hrw 5 Ḥry Rnpt),[8] the "Five Days" (Hrw 5)[8] or "Those upon the Year" (Ḥryw Rnpt), the last of which is transliterated as Heriu Renpet.[9] Parker also proposed that in some cases the intercalary month was known by the name Thoth (Ḏḥwtyt) after the festival that gave its name to the following month.[10]

In modern Egypt, the period is known as Kouji Nabot[5] or Pi Kogi Enavot[11] (Coptic: Ⲡⲓⲕⲟⲩϫⲓ ⲛ̀ⲁⲃⲟⲧ, Pikouji n'Abot, lit. "The Little Month") and Al-Nasi (Egyptian Arabic: النسيء, en-Nasiʾ, lit. "The Postponement"), after Nasi' of the Pre-Islamic calendar. The Arabic name is also romanized as Nasie.[11]

In Ethiopia, the period is known as Paguemain,[12] Phagumien (Amharic: ጳጐሜን, Ṗagʷəmen),[13] Pagume,[14] or Pagumay[15] (ጳጉሜ, Ṗagume).

Egyptian calendars

Ancient

F31S29G43X1Q1D4
W3
Birth of Osiris
Mswt Wsı͗r Ḥb[3]
in hieroglyphs
F31S29G43X1G5
Birth of Horus[lower-alpha 3]
Mswt Ḥr
in hieroglyphs
F31S29G43X1G7Z3AE21G7
Birth of Set
Mswt Stẖ[3]
in hieroglyphs
F31
X1		 Q1
X1		 W3
Birth of Isis
Mswt Ꜣst Ḥb[3]
in hieroglyphs
N5 Z1
N35		 F31S29G43X1
Z1 Z1 Z1		 O9B1
Birth of Nephthys
Sw n Mswt Nbt Ḥwt[3]
in hieroglyphs

Until the 4th century BC, the beginnings of the months of the lunar calendar were based on observation,[16] beginning at dawn on the morning when a waning crescent moon could no longer be seen.[17] The intercalary month was added every two or three years as needed to maintain the heliacal rising of Sirius within the fourth month of the season of Low Water.[18] This month may have had as many as 30 days.[19] According to the civil calendar, the months fell in order with the rest regardless of the state of the moon. They always consisted of 30 days, each individually named and devoted to a particular patron deity, but the year was always followed by an intercalary month of only five days. Owing to the lack of a leap day, the calendar slowly cycled relative to the solar year and Gregorian date until the Ptolemaic and Roman eras.

The period of the intercalary month was considered spiritually dangerous[20] and the pharaoh performed a ritual known as "Pacifying Sekhmet" (Sḥtp Sḫmt) to protect himself and the world[21] from that god's plague.[8] The period seems to have usually been a time of rest, placed between the New Year's Eve celebrations on 30 Wep Renpet and the New Year's celebrations beginning on 1 Thoth.[22] Scribes sometimes omitted the entire period from their records of the year.[23] Torches were carried[24] and apotropaic charms were drawn on linen and worn around the neck.[8]

The period was known as the "birthdays of the gods" as early as the Pyramid Texts.[25] By the early Middle Kingdom, the days were specified and ordered:[25]

  • The first day was the Birth of Osiris (Mswt Wsı͗r).[26] It was also originally known as the "Pure Bull in His Field"[27] (Ngꜣ Wꜥb m Sḫt.f.), although that aspect of the intercalary festivities was later moved to the second day as Horus grew in importance.[28]
  • The second was the Birth of Horus (Mswt Ḥr).[26]
  • The third was the Birth of Set (Mswt Stẖ).[26]
  • The fourth was the Birth of Isis (Mswt Ꜣst or Mswt n Ꜣst).[26]
  • The last day was the Birth of Nephthys (Mswt Nbt-Ḥwt).[29] It was originally the most important, heralding in the New Year's festival and celebrating a "child in his nest" (ḥwn ı͗my sš.f),[20] but these aspects shifted to the fourth night in the Ptolemaic and Roman period owing to the greater importance of Isis and her longstanding connection with the star Sirius.[30]

Throughout the days, their connections to the solar boat of Ra, fish, and a "creator of terror" (ı͗r ḥrywt) were also stressed.[31] In all but a handful of texts, however, the days are merely numbered as "Day ~ of the Five Days upon the Year".[32]

Ptolemy III's Canopus Decree was an attempted calendrical reform in 239 BC which would have inserted a sixth day into the intercalary month, but it was abandoned due to the hostility of the priests[33] and people of Egypt. The leap day was finally established by Augustus in 30, 26,[34] or 25 BC.[33] Under this "Alexandrian calendar", the epagomenal days ran from Julian 24 August to 28 August in common years and to 29 August in leap years.[34][lower-alpha 4]

Coptic

In the present-day Coptic calendar, the intercalary month remains the same as the Alexandrian dates in the Julian calendar. In terms of the Gregorian calendar, it has begun on 6 September[1] and ended on 10 September in common years and 11 September in leap years since AD 1900 (AM 1616)[35] and will continue to do so until AD 2100 (AM 1816).[36] In that year, the Gregorian calendar's lack of a leap day will cause the Coptic month to advance another day relative to it[37] and it will run from 7 September to 11 September. Coptic leap years are not computed as divisors of four in that calendar's Diocletian era but occur in the year prior to the Gregorian leap year.[lower-alpha 5]

The Coptic liturgical calendar of the month consists of:[11]

Coptic Julian Gregorian Commemorations
Intercalary

1

 24 August 6 September
2 25 August 7 September
  • Departure of St. Titus, the Apostle.
  • Martyrdom of St. Isaiah, brother of Apa Hor
3 26 August 8 September
  • Commemoration of Raphael, the Archangel.
  • Martyrdom of St. Andrianus.
  • Departure of St. John XIV, the 96th Pope of Alexandria.
4 27 August 9 September
5 28 August 10 September
  • Departure of St. James, Bishop of Cairo.
  • Departure of Amos, the Prophet.
  • Departure of St. Parsoma, the "Naked".
  • Departure of St. John XV, the 99th Pope of Alexandria.
only in years before Julian leap years
(6) (29 August) (11 September)
  • Thanksgiving to God the Exalted.

Ethiopian calendar

In the present-day Ethiopian calendar, Paguemain or Pagume is identical to the Coptic intercalary month, beginning on 6 September and ending on 10 September in common years and 11 September in leap years.[14] Its leap years occur at the same time[40][13] and its dates will also shift forward one day relative to the Gregorian calendar in AD 2100[15] (2092 EC).[41]

The unusual calendar is notably used in Ethiopian tourist information to advertise the country's "thirteen months of sunshine".[14][12]

Mandaean calendar

The Mandaean calendar consisting of 12 30-day months, with 5 epagomenals inserted at the end of every 8th month (Mandaic: Šumbulta). These 5 extra days constitute the Parwanaya (or Panja) festival in the Mandaean calendar.[42]

See also

Notes

  1. ↑ Alternative representations of Those upon the Year include
    D2
    D21    		 Z4
    N1    		 Z7Z3AM4X1Z1
    .[3]
  2. ↑ Alternative representations of the Five upon the Year include
    M4X1Z1 Z1 Z1
    Z1 Z1    		 D2G43
    .[3]
  3. ↑ For variant hieroglyphic representations of this god, see Horus.
  4. ↑ For a chart of conversions from Julian to Gregorian dates from 3701 BC to AD 1900, see Parker.[34]
  5. ↑ For example, the Coptic leap day occurred on 11 September AD 2015 (6 Epag. AM 1731)[38] and its Gregorian equivalent on 29 February AD 2016 (21 Meshir AM 1732).[39]

References

Citations

  1. 1 2 Gabra, Gawdat (2008), "Coptic Calendar", The A to Z of the Coptic Church, A to Z Guide Series, No. 107, Plymouth: The Scarecrow Press, pp. 70–1, ISBN 9780810870574.
  2. 1 2 Clagett (1995), p. 29.
  3. 1 2 3 4 5 6 7 8 Vygus, Mark (2015), Middle Egyptian Dictionary (PDF).
  4. ↑ "intercalary, adj.", and "intercalate, v.", Oxford English Dictionary, Oxford: Oxford University Press, 1900.
  5. 1 2 Dawood (2007), p. 3.
  6. ↑ "epagomenal, adj.", "epagomenic, adj.", and "epagoge, n.", Oxford English Dictionary, Oxford: Oxford University Press, 1933.
  7. ↑ "Middle Eastern Calendars" (PDF), Educational Resources, Chicago: Center for Middle Eastern Studies at the University of Chicago, p. 3, retrieved 7 February 2017.
  8. 1 2 3 4 Jauhiainen (2009), p. 196.
  9. ↑ Watrall, Ethan (2016), Understanding Egyptian Chronology (PDF), Michigan State University, p. 8.
  10. ↑ Parker (1950), p. 46.
  11. 1 2 3 "13: Nasie Month", Coptic Synaxarium, Alexandria: St Takla Haymanout, retrieved 6 February 2017.
  12. 1 2 Mebratu, Belete K. (2009), "Ethiopian Calendar", Encyclopedia of Time: Science, Philosophy, Theology, & Culture, Vol. I, Los Angeles: Sage, p. 128, ISBN 9781412941648.
  13. 1 2 "Ethiopian Calendar", Selamta, 2015.
  14. 1 2 3 Shinn & al. (2013).
  15. 1 2 "Ethiopian Calendar", Official site, Tesfa Community Treks, retrieved 6 February 2017.
  16. ↑ Parker (1950), p. 29.
  17. ↑ Parker (1950), p. 23.
  18. ↑ Parker (1950), p. 32.
  19. ↑ Parker (1950), p. 64.
  20. 1 2 Spalinger (1995), p. 35.
  21. ↑ Jauhiainen (2009), p. 77.
  22. ↑ Jauhiainen (2009), pp. 81–2 & 198.
  23. ↑ Jauhiainen (2009), p. 56.
  24. ↑ Jauhiainen (2009), pp. 78 & 198.
  25. 1 2 Spalinger (1995), p. 33.
  26. 1 2 3 4 Jauhiainen (2009), pp. 197 & 223.
  27. ↑ Spalinger (1995), p. 38.
  28. ↑ Spalinger (1995), p. 46.
  29. ↑ Jauhiainen (2009), pp. 82, 197, & 223.
  30. ↑ Spalinger (1995), pp. 42 & 44.
  31. ↑ Spalinger (1995), pp. 45–7.
  32. ↑ Spalinger (1995), p. 34.
  33. 1 2 Dawood, K.R. (2007), "The Coptic Calendar" (PDF), Coptic Heritage, p. 7.
  34. 1 2 3 Parker (1950), p. 8.
  35. ↑ Reingold, Edward M.; et al. (2002), Calendrical Tabulations, 1900–2200, Cambridge: Cambridge University Press, p. 2, ISBN 9780521782531.
  36. ↑ Reingold & al. (2002), p. 402.
  37. ↑ Von Staufer, Maria Hubert (2002), "Christmas in Egypt", The Christmas Archives.
  38. ↑ Reingold & al. (2002), p. 232.
  39. ↑ Reingold & al. (2002), p. 234.
  40. ↑ Reingold & al. (2002), pp. xx–xxii.
  41. ↑ Reingold & al. (2002), p. 402.
  42. ↑ Aldihisi, Sabah (2008). The story of creation in the Mandaean holy book in the Ginza Rba (PhD). University College London.

Bibliography

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