From the context of art history, modernity (modernité) has a more confined sense, modern artwork masking the period of c. 1860–1970. Use in the phrase in this feeling is attributed to Charles Baudelaire, who in his 1863 essay "The Painter of Modern Life", designated the "fleeting, ephemeral experience of life https://phrasedirectory.com/listings12684600/detailed-notes-on-culture-of-the-united-states