 for us to understand its development, its legacies. And secondly is the Islamic library, which I talked about briefly with regards to the Islamic universities. This is a huge body of knowledge that has been going on for at least the last 1500, 1600 years. And then of course you have the third library, which is, for lack of a better term, I call it the griot library, what some people call traditional. As a historian, I'm reluctant to use the word tradition,