Porgy and Bess is an English-language opera by the American composer George Gershwin, with a libretto written by author DuBose Heyward and lyricist Ira Gershwin. It was adapted from Dorothy Heyward and DuBose Heyward's play Porgy, itself an adaptation of DuBose Heyward's 1925 novel of the same name. Porgy and Bess was first performed in Boston on September 30, 1935, before it moved to Broadway in New York City. It featured a cast of classically trained African-American singers--a daring artistic choice at the time.
Blevins Davis and Robert Breen produced a revival in 1952 which restored much of the music cut in the Crawford version, including many of the recitatives. It divided the opera into two acts, with the intermission occurring after Crown forces Bess to stay on Kittiwah Island. This version restored the work to a more operatic form, though not all of the recitatives were retained. In this version, Porgy and Bess was warmly received throughout Europe. The London premiere took place on October 9, 1952 at the Stoll Theatre, where the opera continued until February 10, 1953. This production's original cast featured Americans Leontyne Price as Bess, William Warfield as Porgy, and Cab Calloway as Sportin' Life, a role that Gershwin had composed with him in mind. The role of Clara was played by a young Maya Angelou. Price and Warfield met and wed while on the tour. The role of Porgy was the first for Warfield after his appearance as Joe, singing "Ol' Man River" in the popular 1951 MGM film of Show Boat. After a tour of Europe financed by the United States Department of State, the production came to Broadway's Ziegfeld Theatre in March 1953. It later toured North America. After completing its North American run in Montreal, the company embarked on an international tour, with LeVern Hutcherson as Porgy and Gloria Davy as Bess. The production first performed in Venice, Paris, and London, and in other cities in Belgium, Germany, Greece, Italy, Switzerland, and Yugoslavia. The company also made a stop at the Cairo Opera House in Egypt in January 1955. In 1955-1956 the company toured in cities in the Middle East, Africa, Russia, and Latin America. During this tour, Porgy and Bess was presented for the first time at La Scala in Milan in February 1955. A historic yet tense premiere took place in Moscow in December 1955; it was during the Cold War and the first time an American theater group had been to the Soviet capital since the Bolshevik Revolution. Author Truman Capote traveled with the cast and crew, and wrote an account included in his book The Muses Are Heard.

Q: Where did they tour?
A: a tour of Europe
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It later toured North America. This production's original cast featured Americans Leontyne Price as Bess, William Warfield as Porgy, and Cab Calloway as Sportin' Life, a role that Gershwin had composed with him in mind. After a tour of Europe financed by the United States Department of State, This production's original cast featured Americans Leontyne Price as Bess, William Warfield as Porgy, and Cab Calloway as Sportin' Life, the first time an American theater group had been to the Soviet capital since the Bolshevik Revolution.
the first time an American theater group had been to the Soviet capital since the Bolshevik Revolution.