LATERAN COUNCIL
(Lateran councils)
The terrible discriminatory practice of forcing minorities to dress differently and distinctively so as to be easily identified for abuse, cruelty, violence and the withholding of civility and benefits was formalized by the Council as applying to Muslims and Jews. Germany imposed a the wearing of a yellow star at the beginning of the Holocaust based on the religious justification if the Council and this quotation. Similar practices were engaged in by Christian and Islamic rulers, but this was the first time that an entire religion formalized the practice as a part of its religious doctrine.
Essentially this may have been the first arms limitation agreement. Note that it was not outlawed completely. It was just banned from being used by one European nation against another. There was no prohibition of using this early form of napalm delivered by a crude flamethrower.
The Lateran councils were ecclesiastical councils or synods of the Catholic Church held at Rome in the Lateran Palace next to the Lateran Basilica. Ranking as a papal cathedral, this became a much-favored place of assembly for ecclesiastical councils both in antiquity (313, 487) and more especially during the Middle Ages.