It is mainly defined as hostile actions or discrimination against Jews<span> as a religious or ethnic group – goes back many centuries; </span>antisemitism<span> has been called "the longest hatred."
This resource might be helpful to you: http://www.adl.org/assets/pdf/education-outreach/Brief-History-on-Anti-Semitism-A.pdf
Anyways, antisemitism originates most popularly from Christianity, and an abhorrence its followers had (and some still have) towards their rival Judaism.
"<span>They attempted to convert Indians and therefore win favor with God" would be the best option, sine the Puritans thought that if they "saved" Indians they too would be saved. </span>
