It requires a lot of trust, and how were they able to authenticate the notes of credit at any of these points? Now not only did they do this type of deposit and withdrawal in multiple locations, they also, because they had all of these deposits, and people were also donating money to them just to support their cause, they were able to provide loans, oftentimes loans to very powerful individuals like kings and nobility. They were often brokers in major transactions. This is the reason why historians really do consider them perhaps the first true international bank. In other videos we talk about how in 1187, Salah al-Din is able to retake Jerusalem, but then in the Sixth Crusade and the Barons' Crusades, it goes back to Christian hands. But then 1244, it's retaken again by the Muslims and it stays under Muslim control all the way until the end of World War I. And so with Jerusalem taken in 1244, the whole goal of the Knights Templar, the whole purpose of their existence, starts to become less important.