Context: 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.

Question: The Broadway Musical began in what decade?
Answer: 1880s

Question: Approximately how many galleries of art are in New York City?
Answer: 500

Question: Along with Broadway, what New York thoroughfare is associated with Broadway musicals?
Answer: 42nd Street

Question: Who was Hart's writing partner?
Answer: Harrigan

Question: About how many cultural and artistic organizations are in New York City?
Answer: 2,000

Question: What technological development led resulted in elaborate stage productions? 
Answer: electric lighting