From the 3rd of September 1793 to the 27th of July 1794, the number of victims of the Terror is 40,000 victims of whom 17.000 by the guillotine and the rest drown, by shooting squads etc…
After the victory of Fleurus (26th of June 1794, where for the first time an observation balloon (filled with hydrogen) was used, in fact a far better moral factor than a real observation role) the Republic felt safer and Robespierre rule was ended.