Diagram of constellations from a 9th century manuscript
https://cdn.masto.host/glammrus/media_attachments/files/113/900/739/315/510/212/original/f7c638cead55f5c4.jpg
After some years accessible only through a subscription database, more than 300 medieval manuscripts comprising the library of 17th century scholar Isaac Vossius are now freely available. https://www.library.universiteitleiden.nl/news/2025/01/more-than-300-medieval-manuscripts-from-the-bibliotheca-vossiana-now-available-in-open-access
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.