Complex sentence: After developing her skills, she toured in America and joined Barnum's famous circus troupe in 1885, and then returned to Paris to perform at the Folies Bergère (debuting on 18 February 1887).
Split into simpler sentences: After developing her skills, she toured in America and joined Barnum's famous circus troupe in 1885. She then returned to Paris to perform at the Folies Bergère (debuting on 18 February 1887).