4 December - Truce signed between France and Austria.
26 December - Peace of Pressburg signed between France and Austria, as a consequence of the Austrian defeats by France.
31 December - The French Republican calendar is used for the last time, 8 days after being annulled by Napoleon with effect from 1 January 1806, the final official date being "9 Nivôse in Year XIV of the Revolution".[2] This year also he has ordered his soldiers to be vaccinated.