Constantinople was successfully besieged by the fourth crusade in 1204, and the subsequent sacking of the city did apparently result in the destruction of the l

Constantinople was successfully besieged by the fourth crusade in 1204, and the subsequent sacking of the city did apparently result in the destruction of the library. Looking at the Wikipedia page for the library it looks like the phrase was directly copied from there. I guess the problem is Constantinople has fallen many times, but only Fallen once.