The inscription, "This made Wykeham," did exist on a small square tower in the Middle Bailey formerly known as Wykeham Tower, now entirely rebuilt with the inscription recopied and known as Winchester Tower.
The fragments of it which have been recovered from Assur-bani-pal's library at Nineveh and later Babylonian copies show that it was studied, divided into chapters entitled Ninu ilu sirum from its opening words, and recopied for fifteen hundred years or more.
These scholars (most of them members of the Buddhist Order, but many of them laymen) not only copied and recopied the Indian Pali books, but wrote a very large number themselves.