Thermidor, i.e. the 'Hot Month,' formed, in the calendar of the first French Republic, the 11th month, and lasted from the 19th July to the 18th August. The 9th Thermidor of the Republican year 2 (July 27, 1794) is historically memorable as the date of Robespierre's fall, and the termination of the Reign of Terror. The name Thermidorians was given to all those who took part in this fortunate coup d'état, but more particularly to those who were desirous of restoring the monarchy.
Thermidor
Chambers's Encyclopaedia, Volume 10: Swastika to Zyrianovsk and Index, p. 169
Source scan(s): p. 0188