On August 24, 1456, the printing of the famous Gutenberg Bible was completed. The Gutenberg Bible was the first major book printed with movable type in the West, applying the newly developed technology by Johannes Gutenberg. Widely praised for its high aesthetic and artistic qualities, the book has an iconic status.
On October 17, 1604, the famous German astronomer Johannes Kepler started his observations of the 1604 supernova, named after him as Kepler's Supernova or Kepler's Star.
D. Fernández-Álvarez, H. Garc\'ıa-González, J. Frey, S. Hellmann, and J. Gayo. Proceedings of the ISWC 2018 Posters & Demonstrations, Industry and Blue Sky Ideas Tracks co-located with 17th International Semantic Web Conference (ISWC 2018), Monterey, USA, October 8th - to - 12th, 2018, volume 2180 of CEUR Workshop Proceedings, CEUR-WS.org, (2018)