Task: Question Generation
Input (English): New York City has more than 2,000 arts and cultural organizations and more than 500 art galleries of all sizes. The city government funds the arts with a larger annual budget than the National Endowment for the Arts. Wealthy business magnates in the 19th century built a network of major cultural institutions, such as the famed Carnegie Hall and The Metropolitan Museum of Art, that would become internationally established. The advent of electric lighting led to elaborate theater productions, and in the 1880s, New York City theaters on Broadway and along 42nd Street began featuring a new stage form that became known as the Broadway musical. Strongly influenced by the city's immigrants, productions such as those of Harrigan and Hart, George M. Cohan, and others used song in narratives that often reflected themes of hope and ambition.
Output (English): What technological development led resulted in elaborate stage productions?