A top historian offers a new history of Paris's Belle poque, the luminous age of the Eiffel Tower and the Sacr -Coeur Basilica, but also of social unrest and violent clashes over what it meant to be French From the wrought ironwork of the Eiffel Tower to the flourishing art nouveau movement, the Belle poque is remembered as a golden age for Parisian culture. Beneath the veneer of elegance, however, fin de si cle Paris was a city at...