The Imperial declaration, "Let us then have nothing in common with the Jews" uttered by the Roman Emperor Constantine in 329 AD is known in history as "Constantine's Sword" --a declaration from Rome that declared a formal split between Christianity and the Jews. It signaled the first seeds of a violent intolerance towards the Jews some three hundred years after the death of Jesus. Impacting Jewish communities all across the European continent, "Constantine Sword" laid the groundwork for the waves of violent antisemitism that would later grow to engulf all of Europe.