Disclaimer: I am not trolling, I am an autistic person who doesn’t understand so many social nuances. Also I am from New Hampshire (97% white), so I just don’t have any close African-American friends that I am willing to risk asking such a loaded question.
Corned beef seems to have originated in Ireland and Scotland, but was commonly used throughout the British Empire for the past 400 years. I assume the cooking and salting process makes it last much longer without going bad, which would make sense for long voyages.