Answer:Here are some notable singers from each period and their impact on vocal music history:
Middle Ages: Hildegard von Bingen (1098-1179) - Hildegard was a Benedictine abbess, writer, composer, and one of the first known composers of liturgical drama. She was an influential figure in the history of Western music and the development of plainchant.
Baroque: George Frideric Handel (1685-1759) - Handel was a German-British composer who was one of the leading figures in the development of opera and oratorio. He is best known for his opera "Messiah" and the famous aria "Hallelujah" from that work.
Classical: Wolfgang Amadeus Mozart (1756-1791) - Mozart was an Austrian composer who is widely regarded as one of the greatest composers of all time. His vocal music includes a number of operas, masses, and other choral works that are still performed today.
Romantic: Giuseppe Verdi (1813-1901) - Verdi was an Italian composer who was one of the most important figures in the development of Italian opera. His works, including "Aida" and "La Traviata," are known for their dramatic intensity and vocal virtuosity.
20th century: Maria Callas (1923-1977) - Callas was a Greek-American soprano who is widely regarded as one of the greatest opera singers of all time. She was known for her powerful and emotional interpretations of operatic roles, particularly those of the Italian repertoire.