Given that several samples of the Voynich vellum were carbon-dated to the first half of the fifteenth century: it seems to me that at least two hypotheses are permissible with regard to the nature of the source documents:
Hence, in the context of my evaluation of Galician as a possible precursor language: here's a further examination of the differences between the 1373 manuscript and the 1490 printed edition of Crónica Troiana.
The first six lines of the Galician epic story Crónica Troiana, as they appeared in the 1393 manuscript by Fernán Martis and in the first printed edition of 1490. Image credits: Fernán Martis, additional graphics by author.
- that the text was written in the second half of the fifteenth century: in which case, printed documents would have been available in many cities in Europe (and I conjecture that the Voynich producer might have preferred to use printed documents, for their low cost, uniformity and ease of distribution)
- that the text was written in the first half of the fifteenth century, in which case the Voynich producer would have had only manuscripts as source documents.
Hence, in the context of my evaluation of Galician as a possible precursor language: here's a further examination of the differences between the 1373 manuscript and the 1490 printed edition of Crónica Troiana.
The first six lines of the Galician epic story Crónica Troiana, as they appeared in the 1393 manuscript by Fernán Martis and in the first printed edition of 1490. Image credits: Fernán Martis, additional graphics by author.