It lasted from 18 May 1804 to 11 April 1814 and again briefly from 20 March 1815 to 7 July 1815.
Epoque napoleon 3. Paris in the Belle Époque was a period in the history of the city between the years 1871 to 1914 from the beginning of the Third French Republic until the First World WarIt saw the construction of the Eiffel Tower the Paris Métro the completion of the Paris Opera and the beginning of the Basilica of Sacré-Cœur on MontmartreThree lavish universal expositions in 1878 1889 and 1900. The First French Empire officially the French Republic until 1809 then the French Empire French. Imperium Francicum was the empire ruled by Napoleon Bonaparte who established French hegemony over much of continental Europe at the beginning of the 19th century.