Marcion of Sinope has long been vilified & labeled a heretic by his Catholic and Jewish contemporaries. Before the Council of Nicea, Marcion compiled the various Gospels and had written the first draft of the "New Testament" (before it was even called the New Testament) which excluded any of Jewish influence and valued the good traits of Christ - compassion, brotherhood, honesty and forgiveness. He believed the evil, vengeful and violent Jewish-demiurge of Judaism to be a negative influence upon society for his generation and all future generations. He had wrongly been accused of being an anti-semite because of his less than favorable view of Judaism (and the Catholic Church) and their imposing influence on the Mediterranean and Middle East. Why was Marcion important and why should I care? He pissed a LOT of ancient people off, many of those same people who would eventually define Western religion, philosophy and ideology.