On July 20th, 1263 the Disputation of Barcelona began on this day. This was a four-session debate between Dominican Friar Pablo Christiani and Rabbi Moses ben Nahman (more commonly known as the Ramban/Nachmanides).The debate took place in front of King James I, who granted Nachmanides the right to freedom of speech so that the debate could be real. The Christians set the agenda for the debate, including arguments on whether or not the Messiah had already appeared (as Jesus), whether the Messiah was a human or divine creature, and which faith was the real one.Pablo Chritiani, who was a converted Spanish Jew (a "converso"), based his argument on the Talmud, specifically the “Aggadic” passages (anecdotes and legends found in the Talmud). Nachmanides countered his claims by arguing that the Talmud would not explicitly oppose Jesus and also hint to him being the Messiah. He then contended that Jews do not actually have to believe in the Aggadah portions of the Talmud, and the promises of Messianic time, peace, and justice have not appeared. If anything, there is more war now than there was before Jesus.The Bishop of Gerona eventually received a copy of Nachmanadies’ account of the Disputation and brought charges against him in the court of the Inquisition, causing him to leave Spain for Israel, where he arrived in 1267.After the Disputation, Dominican Raymond Martini saw the need for a more Christological interpretation of the Aggadah and authored a book about it, which was published in 1280 and has since been used in many Christian debates. The King decided that missionary activities should be used against the Jews and required Jews to hear the sermons of Dominican friars. In August, the Friars required all Jews to erase any part of the Talmud that vilified Jesus or Mary, and if they did not, their books would be burned and they would have to pay a fine. Maimonides’ Mishnah Torah was one of the books determined to vilify Jesus and, therefore, had to be burned. This led to Pope Clement IV ordering the archbishop of Tarragona to collect all Jewish books in Aragon and to give them to the friars to examine the contents and ensure that there was no vilification present.