See the Help: What is a bulgine? thread if you're still unfamiliar with the Negro Lecture on the Locomotive Bulgine genre.

Gibb: ..."bulgine" had the connotation of Black speech at that point:"

"One of the most tangible of these to note in this particular discussion is the word 'bulgine,' which seems to me a word that was at that time understood as markedly Black speech, and for that reason, also popular with evoking stereotypical Blackness in minstrel songs."

&c.

10 May 1849, two dozen dead and five times the injured at the Astor Place Riots, beaten, kicked and stoned because... Shakespeare.

Two thirds of the land never went to a minstrel show. A sixth went, and left feeling somewhere betwixt "Meh" and "Boffo!" A sixth were so disgusted with the entire concept they were too busy plotting to emigrate to Africa; take over ferries and/or assassinate presidents (allegedly.)

It's a big planet.