Hi, I am looking for volunteers willing to code the Luther Timeline and Letters databases into Schema ( https://schema.org/Event ). Google crawlers are capable of recognizing the hierarchy used by Schema and is feed it into Knowledge Graphs. If someone asks Google "What did Luther do in 1517?" questions answerable from the databases could then appear under the "People also ask" section: such as "When was the Heidelberg Disputation?"
The databases are currently underused. Because they are unusually complete, I believe this will take quite a bit of work. Respond to this thread if you are interested in contributing.