Belle Époque
US /ˌbel eɪˈpɑːk/
UK /ˌbel eɪˈpɑːk/
1.
a period in European social history from the late 19th century to World War I, characterized by optimism, peace, economic prosperity, and technological and cultural innovations.
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Paris flourished during the Belle Époque, with new artistic movements and architectural marvels.
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The optimism of the Belle Époque was shattered by the outbreak of World War I.