French Republican Calendar

The French Revolutionary Calendar or French Republican Calendar is a calendar proposed during the French Revolution, and in use by the French government for 13 years from 1793. It was abolished by Napolon partly to appease the Catholic Church, which opposed the calendar because it abolished the Sabbath and saints' days. It was designed by the politician and agronomist Charles Gilbert Romme, although is usually attributed to Fabre d'glantine, who invented the names of the months. The calendar was adopted by the Jacobin-controlled National Convention on October 24, 1793. Years appear in writing as Roman numerals (usually), counted from the beginning of the 'Republican Era', beginning on September 22 1792 (the day of the proclamation of the French First Republic, one day after the Convention abolished the monarchy). As a result the calendar is based on a date one year before it was actually adopted. The new year began on the autumnal equinox. There were 12 months, each divided into three ten-day weeks called dcades. Each day was divided into ten hours, each hour into 100 decimal minutes and each decimal minute had 100 decimal seconds. Clocks were manufactured to display decimal time of day, but it did not catch on and was abandoned in 1795. Napolon finally abolished official use of the calendar on January 1, 1806 (in fact at midnight, the 10 nivse year XIV aka December 31, 1805), thirteen years after its introduction. However, it was to be used again during the brief Paris Commune in 1871 (year LXXIX). Many conversion tables and programs exist, largely created by genealogists. Some enthusiasts in France still use the calendar, more out of historical re-enactment than practicality. The legal texts that were adopted when the Revolutionary Calendar was official and are still in force in France have kept their original dates for citation purposes.

The months

Revolutionary Calendar year began in autumn equinox and had twelve months of 30 days each, which were given new names based on nature: Note that the English names are approximate, as most of the month names were new words coined from similar French, Latin or Greek words. The endings of the names are grouped by season.

The days of the year

Instead of each day having a Saint as in the Catholic Church's calendar, each day has a plant, a tool or an animal associated with it.

Autumn

Vendmiaire
(Sep 22 ~ Oct 21)
  1. Ravin
  2. Safran
  3. Chtaigne
  4. Colchique
  5. Cheval
  6. Balsamine
  7. Carotte
  8. Amaranthe
  9. Panais
  10. Cuve
  11. Pomme de terre
  12. Immortelle
  13. Potiron
  14. Rsda
  15. ne
  16. Belle de nuit
  17. Citrouille
  18. Sarrasin
  19. Tournesol
  20. Pressoir
  21. Chanvre
  22. Pche
  23. Navet
  24. Amaryllis
  25. Boeuf
  26. Aubergine
  27. Piment
  28. Tomate
  29. Orge
  30. Tonneau
Brumaire
(Oct 22 ~ Nov 20)
  1. Pomme
  2. Cleri
  3. Poire
  4. Betterave
  5. Oie
  6. Hliotrope
  7. Figue
  8. Scorsonre
  9. Alisier
  10. Charrue
  11. Salsifis
  12. Macre
  13. Topinambour
  14. Endive
  15. Dindon
  16. Chervis
  17. Cresson
  18. Dentelaire
  19. Grenade
  20. Herse
  21. Bacchante
  22. Azerole
  23. Garance
  24. Orange
  25. Faisan
  26. Pistache
  27. Mahjonc
  28. Coing
  29. Cormier
  30. Rouleau
Frimaire
(Nov 21 ~ Dec 20)
  1. Raiponce
  2. Turneps
  3. Chicore
  4. Nfle
  5. Cochon
  6. Mche
  7. Chou-fleur
  8. Miel
  9. Genivre
  10. Pioche
  11. Cire
  12. Raifort
  13. Cdre
  14. Sapin
  15. Chevreuil
  16. Ajonc
  17. Cyprs
  18. Lierre
  19. Sabine
  20. Hoyau
  21. Erable sucr
  22. Bruyre
  23. Roseau
  24. Oseille
  25. Grillon
  26. Pignon
  27. Lige
  28. Truffe
  29. Olive
  30. Pelle

Winter

Nivse
(Dec 21 ~ Jan 19)
  1. Tourbe
  2. Houille
  3. Bitume
  4. Soufre
  5. Chien
  6. Lave
  7. Terre vgtale
  8. Fumier
  9. Salptre
  10. Flau
  11. Granit
  12. Argile
  13. Ardoise
  14. Grs
  15. Lapin
  16. Silex
  17. Marne
  18. Pierre chaux
  19. Marbre
  20. Van
  21. Pierre pltre
  22. Sel
  23. Fer
  24. Cuivre
  25. Chat
  26. tain
  27. Plomb
  28. Zinc
  29. Mercure
  30. Crible
Pluvise
(Jan 20 ~ Feb 18)
  1. Laurole
  2. Mousse
  3. Fragon
  4. Perce-neige
  5. Taureau
  6. Laurier thym
  7. Amadouvier
  8. Mzron
  9. Peuplier
  10. Coigne
  11. Ellbore
  12. Brocoli
  13. Laurier
  14. Avelinier
  15. Vache
  16. Buis
  17. Lichen
  18. If
  19. Pulmonaire
  20. Serpette
  21. Thlaspi
  22. Thimele
  23. Chiendent
  24. Trainasse
  25. Livre
  26. Gude
  27. Noisetier
  28. Cyclamen
  29. Chlidoine
  30. Traneau
Ventse
(Feb 19 ~ Mar 20)
  1. Tussilage
  2. Cornouiller
  3. Violier
  4. Trone
  5. Bouc
  6. Asaret
  7. Alaterne
  8. Violette
  9. Marceau
  10. Bche
  11. Narcisse
  12. Orme
  13. Fumeterre
  14. Vlar
  15. Chvre
  16. pinard
  17. Doronic
  18. Mouron
  19. Cerfeuil
  20. Cordeau
  21. Mandragore
  22. Persil
  23. Cochiaria
  24. Pquerette
  25. Thon
  26. Pissenlit
  27. Sylve
  28. Capillaire
  29. Frne
  30. Plantoir

Spring

Germinal
(Mar 21 ~ Apr 19)
  1. Primevre
  2. Platane
  3. Asperge
  4. Tulipe
  5. Poule
  6. Bette
  7. Bouleau
  8. Jonquille
  9. Aulne
  10. Couvoir
  11. Pervenche
  12. Charme
  13. Morille
  14. Htre
  15. Abeille
  16. Laitue
  17. Mlze
  18. Cigu
  19. Radis
  20. Ruche
  21. Gainier
  22. Romaine
  23. Marronnier
  24. Roquette
  25. Pigeon
  26. Lilas
  27. Anmone
  28. Pense
  29. Myrtille
  30. Greffoir
Floral
(Apr 20 ~ May 19)
  1. Rose
  2. Chne
  3. Fougre
  4. Aubpine
  5. Rossignol
  6. Ancolie
  7. Muguet
  8. Champignon
  9. Hyacinthe
  10. Rteau
  11. Rhubarbe
  12. Sainfoin
  13. Bton-d'or
  14. Chamerops
  15. Ver soie
  16. Consoude
  17. Pimprenelle
  18. Corbeille d'or
  19. Arroche
  20. Sarcloir
  21. Statice
  22. Fritillaire
  23. Bourrache
  24. Valriane
  25. Carpe
  26. Fusain
  27. Civette
  28. Buglosse
  29. Snev
  30. Houlette
Prairial
(May 20 ~ Jun 18)
  1. Luzerne
  2. Hmrocalle
  3. Trfle
  4. Anglique
  5. Canard
  6. Mlisse
  7. Fromental
  8. Martagon
  9. Serpolet
  10. Faux
  11. Fraise
  12. Btoine
  13. Pois
  14. Acacia
  15. Caille
  16. Oeillet
  17. Sureau
  18. Pavot
  19. Tilleul
  20. Fourche
  21. Barbeau
  22. Camomille
  23. Chvrefeuille
  24. Caille-lait
  25. Tanche
  26. Jasmin
  27. Verveine
  28. Thym
  29. Pivoine
  30. Chariot

Summer

Messidor
(Jun 19 ~ Jul 18)
  1. Seigle
  2. Avoine
  3. Oignon
  4. Vronique
  5. Mulet
  6. Romarin
  7. Concombre
  8. Echalote
  9. Absinthe
  10. Faucille
  11. Coriandre
  12. Artichaut
  13. Girofle
  14. Lavande
  15. Chamois
  16. Tabac
  17. Groseille
  18. Gesse
  19. Cerise
  20. Parc
  21. Menthe
  22. Cumin
  23. Haricot
  24. Orcante
  25. Pintade
  26. Sauge
  27. Al
  28. Vesce
  29. Bl
  30. Chalmie
Thermidor
(Jul 19 ~ Aug 17)
  1. Epeautre
  2. Bouillon blanc
  3. Melon
  4. Ivraie
  5. Blier
  6. Prle
  7. Armoise
  8. Carthame
  9. Mre
  10. Arrosoir
  11. Panis
  12. Salicorne
  13. Abricot
  14. Basilic
  15. Brebis
  16. Guimauve
  17. Lin
  18. Amande
  19. Gentiane
  20. Ecluse
  21. Carline
  22. Cprier
  23. Lentille
  24. Aune
  25. Loutre
  26. Myrte
  27. Colza
  28. Lupin
  29. Coton
  30. Moulin
Fructidor
(Aug 18 ~ Sep 16)
  1. Prune
  2. Millet
  3. Lycoperdon
  4. Escourgeon
  5. Saumon
  6. Tubreuse
  7. Sucrion
  8. Apocyn
  9. Rglisse
  10. Echelle
  11. Pastque
  12. Fenouil
  13. Epine vinette
  14. Noix
  15. Truite
  16. Citron
  17. Cardre
  18. Nerprun
  19. Tagette
  20. Hotte
  21. Eglantier
  22. Noisette
  23. Houblon
  24. Sorgho
  25. Ecrevisse
  26. Bigarade
  27. Verge d'or
  28. Mas
  29. Marron
  30. Panier

The ten days of the week

The month divides into 3 "weeks" each of ten days, named simply:
  • primidi
  • duodi
  • tridi
  • quartidi
  • quintidi
  • sextidi
  • septidi
  • octidi
  • nonidi
  • dcadi.

Left-over days

Five left-over days (six in leap years) were used as national holidays at the end of every year. These were known at first as Les Sans-Culottides (after the sans-culottes), and after the year III (1795) as les jours complmentaires:

Critiques and shortcomings of the calendar

Leap years in the calendar are a point of great dispute, due to the contradicting statements requiring the year to start on the Autumnal Equinox while adding a leap day every 4 years (like the Gregorian Calendar). The years III, VII, and XI were observed as leap years, and the years XV and XX were also planned as such. However, an algorithm for determining leap years after year XX was never developed. As such, attempts to extend the calendar beyond year XIV often use differing methods of determining leap years. Most such attempts use a form of the Gregorian method (with or without a proposed 400-year rule in which every year divisible by 400 would be a non-leap year). Alternative systems included one that would have excluded leap years on years divisible by 128, and also one which would have divided each century into four "quarters" of 25 years each, with the 2nd, 6th, 10th, 14th, 18th and 22nd years of each "quarter" being leap years (creating a scenario whereby four times each century the leap years would be spaced five years apart instead of four, from the 22nd year of one quarter to the second year of the next); in addition, every fourth year ending in "00" would also be a leap year, thus exactly echoing the Gregorian practice of having 97 out of every 400 years be leap years. The calendar was abolished because the Catholic Church strongly opposed it as an attempt to rid the calendar of all Christian influences; because having a ten-day work week gave workers less rest (one day off every ten instead of one day off every seven); because the equinox was a mobile date to start every new year (a fantastic source of confusion for almost everybody); and because it was incompatible with the secular rhythms of trade fairs and agricultural markets. Perhaps the most famous date in this calendar was immortalised by Karl Marx in the title of his pamphlet, The 18th Brumaire of Louis Napolon (1852). The 18 Brumaire (November 9 1799) is considered the end of French Revolution. Another famous revolutionary date is 9 Thermidor, the date the Convention turned against Robespierre, who, along with others associated with the Mountain, was guillotined the following day. (See Glossary of the French Revolution for other significant dates under this calendar.) Emile Zola's novel Germinal takes its name from the calendar, as does the dish, Lobster Thermidor. It is notable that with the removal of religious influences this "universal" calendar was in fact made particular to France, since the descriptive month names would range from slightly to completely inaccurate when used in other climates (most obviously in the Southern Hemisphere). Also, the Autumnal Equinox - the event used to mark the start of each new year - does not occur on the same calendar date all over the world (based on local time), for example usually falling one day later in eastern Asia than in North America.

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