Talk:Castagnajo's calendar

Number of books
The Italian source for this article says there are fourteen books ("quattordici libri"), but the structure laid out for them is more compatible with the number being thirteen. I wasn't able to find any more authoritative information, but questioned it because it was unsourced and the first edit by a new editor who has made very few other contributions.  &mdash; jmcgnh  (talk) (contribs)  08:27, 15 December 2017 (UTC)