source: Offenbach's numerous operettas, such as Orpheus in the Underworld, and La belle Hélène, were extremely popular in both France and the English-speaking world during the 1850s and 1860s.
target: Offenbach composed numerous operettas, such as Orpheus in the Underworld and La belle Helene.  His operettas were very popular in France and English-speaking countries in the 1850s and 1860s.
references: Offenbach composed numerous operettas, such as Orpheus in the Underworld and La belle Helene.  His operettas were very popular in France and English-speaking countries in the 1850s and 1860s. From 1850 to 1860 Offenback's operettas were poplular. Offenbach's numerous operettas were extremely popular in both France and the English-speaking world during the 1850s and 1860s. Offenbach's operettas, like Orpheus in the Underworld and La belle Helene, were popular in France and English-speaking countries in the 1850s and 1860s. Offenbach's numerous operettas, such as Orpheus in the Underworld, and La belle Hélène, were extremely popular in France and the English-speaking world during the 1850s and 1860s. Offenbach's many operettas, such as Orpheus in the Underworld, and La belle Hélène, were very popular in France and the English-speaking world during the 1850s and 1860s. Offenbach's numerous performances, such as Orpheus in the Underworld and La belle Hélène, were very popular in France and the English-speaking world during the 1850s and 1860s. Offenbach wrote many operettas, such as Orpheus in the Underworld and La belle Hélène. They were very popular in France and English-speaking countries during the 1850s and 1860s. Offenbach's operettas, such as Orpheus in the Underworld and La belle Hélène, were very popular in France and the English-speaking world during the 1850s and 1860s. Offenbach's had a lot of musical shows including Orpheus in the Underworld, and La belle Hélène which many liked in France and the English-speaking world in the 1850's and 1860's.