Complex sentence: Leonard Harper and Osceola Blanks performed in his first big revue, Plantation Days when it opening at the Lafayette Theatre in Harlem in 1922-1923, and began producing floor shows in Harlem and New York thereafter.
Split into simpler sentences: Leonard Harper and Osceola Blanks performed in his first big revue, "Plantation Days," when it opened at the Lafayette Theatre in Harlem in 1922-1923. He began producing floor shows in Harlem and New York thereafter.