From the Norton Simon Museum website:
By Day & by Night: Paris in the Belle Époque surveys the rich range of artistic responses to life in the French capital through a selection of paintings, drawings, prints and photographs from the Museum’s collections. Together these works of art demonstrate that visual artists participated in the inventive spirit of the age by interpreting the everyday as something extraordinary.
The belle époque, a French expression meaning “beautiful era,” refers to the interwar years between 1871 and 1914, when Paris was at the forefront of urban development and cultural innovation. During this time Parisians witnessed the construction of the Eiffel Tower, the ascendancy of the Montmartre district as an epicenter for art and entertainment and the brightening of their metropolis under the glow of electric light. From the nostalgic perspective of the twentieth century, this four-decade period of progress and prosperity was a golden age of spectacle and joie de vivre.