Dave, consider that there are authors today that have written more cookbooks than all the combined cookbooks of that era
Actually I found a great many cook books, an amazing amount, referenced in English cookery books to the year 1850, by Arnold Whitaker Oxford
But alas, they are all English titles. So absence of evidence does not indicate evidence of absence... but again in my case it's snobbery.
OH and last night I found my copy of an Italian cookbook from 1475 (translated)...the addition of tomato sauce many years later improved their cuisine many fold.... :shocked2:
LD