Answer
Belle Époque, meaning "Beautiful Era," refers to a period in French history from the late 1870s to the start of World War I in 1914. It was characterized by optimism, peace, and prosperity, fueling significant advancements in the arts, culture, and technology. The term is closely associated with Massenet's career, as his most notable works, such as "Manon" and "Werther," were composed during this period, reflecting the era's spirit.