{"type": {"key": "/type/work"}, "title": "Polonia coepit habere episcopum", "subjects": ["Church history", "Middle Ages", "Catholic Church. Archdiocese of Pozna\u0144 (Poland)"], "subject_places": ["Poland", "Pozna\u0144"], "subject_people": ["Mieszko I Duke of Poland (approximately 922-992)"], "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL327468A"}}, {"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL424462A"}}], "key": "/works/OL45798232W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2026-07-20T13:48:05.635119"}, "last_modified": {"type": "/type/datetime", "value": "2026-07-20T13:48:05.635119"}}