On: every psalm and song in the daily prayers uses today’s English. Off: all of them use the older “thee and thou”. Until you choose, the Songs of Zechariah, Mary and Simeon use today’s English, as most churches sing them. The Lord’s Prayer and the prayers for the dying show the form most people learned.
The 1555 settlement allowing each territorial ruler in the Holy Roman Empire to determine whether their territory would be Lutheran or Catholic. Ended one round of religious war and set up the next.
In History — The Reformation, and the people who carried it.