query: When was the first opera written?
passage: Opera
Dafne by Jacopo Peri was the earliest composition considered opera, as understood today. It was written around 1597, largely under the inspiration of an elite circle of literate Florentine humanists who gathered as the "Camerata de' Bardi". Significantly, Dafne was an attempt to revive the classical Greek drama, part of the wider revival of antiquity characteristic of the Renaissance. The members of the Camerata considered that the "chorus" parts of Greek dramas were originally sung, and possibly even the entire text of all roles; opera was thus conceived as a way of "restoring" this situation. Dafne, however, is lost. A later work by Peri, Euridice, dating from 1600, is the first opera score to have survived to the present day. The honour of being the first opera still to be regularly performed, however, goes to Claudio Monteverdi's L'Orfeo, composed for the court of Mantua in 1607.[7] The Mantua court of the Gonzagas, employers of Monteverdi, played a significant role in the origin of opera employing not only court singers of the concerto delle donne (till 1598), but also one of the first actual "opera singers"; Madama Europa.[8]
passage: Italian opera
Opera took an important new direction when it reached the republic of Venice. It was here that the first public opera house, the Teatro di San Cassiano, was opened in 1637 by Benedetto Ferrari and Francesco Manelli. Its success moved opera away from aristocratic patronage and into the commercial world. In Venice, musical drama was no longer aimed at an elite of aristocrats and intellectuals and acquired the character of entertainment. Soon many other opera houses had sprung up in the city, performing works for a paying public during the Carnival season. The opera houses employed a very small orchestra to save money. A large part of their budget was spent on attracting the star singers of the day; this was the beginning of the reign of the castrato and the prima donna (leading lady).