Dafne, composed by Jacopo Peri and Ottavio Rinuccini, is considered to be the earliest known opera.

Claudio Monteverdi is widely regarded as the father of opera for his groundbreaking work, Orfeo, which established many of the conventions of the genre.

The Teatro San Cassiano in Venice, Italy, is considered to be the first public opera house, opening in 1637.

Claudio Monteverdi is known for his innovative use of recitative and aria, two essential elements of opera.

Rinaldo, composed by George Frideric Handel, is one of the most famous opera seria of the Baroque era.

Gioachino Rossini is renowned for his comic operas, such as The Barber of Seville and La Cenerentola.

The Marriage of Figaro, composed by Wolfgang Amadeus Mozart, is one of the most celebrated operas of all time.

Giuseppe Verdi is renowned for his grand operas, such as Aida and La Traviata.

The Ring Cycle, composed by Richard Wagner, is a monumental four-opera cycle based on Norse mythology.

Giacomo Puccini is renowned for his verismo operas, such as La Bohème and Tosca.

Pagliacci, composed by Ruggero Leoncavallo, is one of the most popular verismo operas.

Richard Wagner is known for his innovative use of leitmotifs, short musical phrases associated with specific characters, objects, or ideas.

Cavalleria Rusticana, composed by Pietro Mascagni, is one of the most famous verismo operas.

Giuseppe Verdi is known for his operas based on historical events, such as Nabucco and Aida.

Andrea Chénier, composed by Umberto Giordano, is one of the most popular verismo operas.