The life of Johann Sebastian Bach is beautifully documented on this website of the Bach-Archiv in Germany. Consult the Calendar here. You can scroll in time and click through to events for more information. Below is a screenshot of this website.

Paul Gerhardt, favourite poet after Luther
Besides Martin Luther’s great significance for Protestant church song, the theologian and poet Paul Gerhardt (1607-1676) should also be mentioned, especially in relation to Bach’s work. Gerhardt lived in the