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what is the meaning of joie de vivre
Joie de vivre is a keen or buoyant enjoyment of life.
what is the origin of the phrase joie de vivre
Casual use of joie de vivre in French can be dated back at least as far as Fénelon in the late 17th century.
When did the phrase joie de vivre become popular?
Joie de vivre was brought into literary prominence in the 19th century.
what 19th century literature brought the phrase joie de vivre into literary prominence
The phrase joie de vivre was brought into literary prominence in the 19th century, first by Michelet's Insecte and then by Émile Zola's Joie de vivre.

Question: how did the phrase develop in the 20th century
Self-contained rewrite: how did the phrase joie de vivre develop in the 20th century