'Een vaste burg is onze God' de kerkhervorming herdacht op haar vierde eeuwfeest, 1517—31 October—1917

The work offers a compact, reader‑friendly account of the Protestant Reformation as it was remembered on its fourth centenary in 1917. Framed as a brief guide for anyone wishing to refresh their knowledge, it blends historical narrative with clear definitions—explaining, for instance, how “reformation” means restoring an original shape rather than merely reshaping something new. The author keeps the original spelling of the 17th‑century source, but supplies careful editorial markings, pop‑up original text, and occasional translations that make the older language approachable without sacrificing authenticity.

While the book stays firmly in the first act of the story, it paints a vivid picture of the religious climate that sparked the movement, the key ideas that spread across Europe, and the way those changes touched the lives of ordinary people. Its concise style encourages listeners to grasp the core significance of the Reformation and perhaps explore the larger, more detailed works that followed.