Subject: History
Author of work: Ranulphus Higden
Title: Polychronicon
Subject: Moral philosophy
Author of work: F. Petrarchus (Francesco Petrarca)
Title: De remediis utriusque fortunae
Subject: Philosophy
Title: Philosophy
Subject: Philosophy / Cosmology
Title: Philosophy / Cosmology
Subject: Philosophy
Author of work: Aristoteles
Title: Physica
Subject: Music
Title: Polyphonic music