Question: Eubie Blake wrote a musical in 1921 about what sort of event?

Context articles: Regal Records (1921)
I'm Just Wild About Harry
Amas Musical Theatre
Eubie Blake
Shuffle Along
The Eighty-Six Years of Eubie Blake
Bubbling Brown Sugar
Eubie!
Big Deal (musical)
Brandon Victor Dixon

Regal Records was an American record label owned by the Plaza Music Company that issued recordings from 1921 through 1931.
 Masters were recorded by Emerson Records, and issued mostly in chain stores for 50 cents each.
 Noted artists with records issued on Regal include Fletcher Henderson's Orchestra, Eubie Blake, the Original Memphis Five, Cab Calloway, and Duke Ellington.
 The label was acquired in August 1922 by Scranton Button Company.
"I'm Just Wild About Harry" is a song written in 1921 with lyrics by Noble Sissle and music by Eubie Blake for the Broadway show "Shuffle Along".
 "I'm Just Wild About Harry" was the most popular number of the production, which was the first financially successful Broadway play to have African-American writers and an all African-American cast.
 The song broke what had been a taboo against musical and stage depictions of romantic love between African-Americans.
Amas Musical Theatre, also known as the Rosetta LeNoire Theatre Academy and the Mainstage Musical Theatre, and formerly known as the Amas Repertory Theatre, Inc. and the Eubie Blake Youth Theatre, is a non-profit Manhattan-based theatre organization founded by Rosetta LeNoire.
 The name stems from the Latin word "amare", meaning "to love".
 "Amas" is the active indicative present form of "you love".
 The Academy puts on both a showcase and an off-off-Broadway performance at the end of the year, featuring inner-city and other teenagers.
 Amas is an anchor theatre tenant of the Players Theatre, a theatre located in Greenwich Village.
 The theatre has produced over 60 original musicals, including "Bubbling Brown Sugar" and "Bojangles!"
.
James Hubert Blake (February 7, 1887 – February 12, 1983), known as Eubie Blake, was an American composer, lyricist, and pianist of ragtime, jazz, and popular music.
 In 1921, he and his long-time collaborator Noble Sissle wrote "Shuffle Along", one of the first Broadway musicals to be written and directed by African Americans.
 Blake's compositions included such hits as "Bandana Days", "Charleston Rag", "Love Will Find a Way", "Memories of You" and "I'm Just Wild About Harry".
 The musical "Eubie!
", which opened on Broadway in 1978, featured his works.
Shuffle Along is a musical with music and lyrics by Noble Sissle and Eubie Blake, and a thin revue-style connecting plot about a mayoral race, written by Flournoy Miller and Aubrey Lyles.
The 86 Years of Eubie Blake is a 1969 studio album by ragtime pianist Eubie Blake and marks a reunion for Blake with his longtime collaborator, Noble Sissle.
 In 2006, the album was entered in the National Recording Registry at the Library of Congress.
Bubbling Brown Sugar is a musical revue written by Loften Mitchell based on a concept by Rosetta LeNoire and featuring the music of numerous African-American artists who were popular during the Harlem Renaissance, 1920–1940, including Duke Ellington, Eubie Blake, Count Basie, Cab Calloway and Fats Waller.
 Original music, including the title theme song "Bubbling Brown Sugar" was composed by pianist Emme Kemp, a protégé of the legendary Eubie Blake.
 It was nominated for the Tony Award for Best Musical and the Laurence Olivier Award for Best New Musical.
Eubie!
 is a revue featuring the music of Eubie Blake, with lyrics by Noble Sissle, Andy Razaf, Johnny Brandon, F. E. Miller, and Jim Europe.
Big Deal is a musical with a book by Bob Fosse using songs from various composers such as Ray Henderson, Eubie Blake, and Jerome Kern.
 It was based on the film "Big Deal on Madonna Street" by Mario Monicelli.
 The musical received five Tony Award nominations, with Fosse winning for Choreography.
Brandon Victor Dixon (born 1981) is an American actor, singer and theatrical producer.
 As an actor, he is known for playing the Broadway roles of Harpo in "The Color Purple" (2005), for which he was nominated for a Tony Award, and Berry Gordy Jr. in "" (2013).
 In London's West End, in 2014–2015, he played the role of Hayward Patterson in "The Scottsboro Boys".
 In 2016, he played the role of Eubie Blake on Broadway in "Shuffle Along, or, the Making of the Musical Sensation of 1921 and All That Followed", for which he was nominated for another Tony.