I've always been curious about their back story

Jack had a contract to deliever slaves, but instead he freed the slaves. because of this his ship was burrned and sunk. he made a deal with davy jones to raise the ship from her watery grave. the ship was renamed the black pearl. the deal jack made for the black pearl cost him a debt of 100 souls. there had been 100 slaves on the ship to begin with.

That's why I'm here. Except I usually only correct the idiots who make fun of other people's grammar and spelling.

It's sunk** don't bother correcting people if you're going to do It wrong.