Astrologer's Almanacs

Gerson wrote at least one almanac per year, along with prose narratives called prognostications. He described weather patterns, epidemi wars and even the behaviour of men with soft or bellicose temperaments for the year to come. Gerson explains he adorned his almanacs with four line predictive poems called presages or portents,. That he claimed to have composed out of natural instinct and poetic frenzy. The ones he published are known to have contained at least six thousand 338 prophecies and 11 annual calendars.