WHo is the person that introduced witchcraft to the girls?

Tituba is Rev. Paris’s slave girl from Barbados. She knows about what the Puritans consider as “black magic.” Now Tituba is not really the instigator in all this. Abigail Williams manipulates her into introducing her craft to the other girls. The result is a bunch of girls dancing around half naked in a field. So, it really depends on who you want to pick for the answer to your question.