French RevolutionThe decimal "franc" was established as the national currency by the French Revolutionary Convention in 1795 as a decimal unit (1 franc = 10 decimes = 100 centimes) of 4.5 g of fine silver. This was slightly less than the livre of 4.505 g but the franc was set in 1796 at 1.0125 livres (1 livre, 3 deniers), reflecting in part the past minting of sub-standard coins.
However the circulation of this metallic currency declined during the Republic that exchanged the old gold and silver reserves (needed to finance wars and try to solve the shortage of food supplies by importing them) against printed assignats, initially designed as bonds based on the value of the confiscated goods of churches, but later declared as legal tendercurrency. Too many assignats were put in circulation (by largely overevaluating the value of the "national properties"), and the silver franc rarefied to pay foreign providers, and the unpaid governmental national debt caused decreasing trust in this secondary unit, shortage of silver supplies for producing metallized francs, hyperinflation, even more food riots in the population, and severe political instability and termination of the First French Republic (the political fall of the French Convention, the economic failure of the Directoire that replaced it, then a coup d'état that lead to the Consulate during which only the first Consul progressively gained all the legislative powers against the other unstable and discredited consultative or legislative institutions).