The month of brumaire was the second month of the republican Calendrier French.

It corresponded except for a few days (according to the year) at the period going of the October 22nd to the November 20th of the Gregorian Calendrier.

In addition, it roughly recovers the period during which the Sun crosses the sign of the Scorpion of the Zodiaque tropic.

It drew its name “ from the fogs & the low fogs which are (...) the transudation of the nature of October in November ”, according to the terms of the report/ratio presented to the national Convention the 3 brumaire year II (October 24th 1793) by Fabre d' Églantine, in the name of the “charged commission of the clothes industry of the calendar”.

This month gave its name to the Coup d'etat, occurred the 18 brumaire An VIII (the November 9th 1799), which carried the general Napoleon Bonaparte to the capacity in France. One speaks in this case about the 18-Brumaire (proper name, with hyphen and capital letter at the second part of the name), but also about Brumaire (there too with a capital letter, to distinguish from the name of the month in general).

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