Once they had recorded their knowledge of post-war human conceptions in Book Zero, The Historians could go on to record the New Births in Book One, and Names in Book Two, and then perhaps Childhood Diseases in Book Three and then perhaps TOYS in Book Four.
In the last decade of the century there would be Historians to compile Book Ninety-Six on Fatal Illnesses, Book Ninety-Seven would record Deaths, Book Ninety-Eight would record Funerals & Memorials, Book Ninety-Nine would record Last Wills & Testaments and Book One Hundred would record Ghosts.