I've just been looking around to see what anniversaries are coming up next year, especially of a Christian sort. Perhaps most obvious is the anniversary of the birth of David Livingstone 1813-1873. Then there is the Heidelberg Catechism, the anniversary of which coincides with the completion of the Council of Trent the same year. That latter event was marked 400 years later by Vatican II, now fifty years back itself. 1963 is also the year when not only Kennedy died but also A W Tozer and C S Lewis (the latter on the same day as the assassination).
Significant Puritan anniversaries include the death of Isaac Ambrose 1604-1663 and the birth of Cotton Mather 1663-1728. In Scotland they will no doubt be marking the birth of the theologian George Gillespie 1613-1648 and the death of the theologian David Dickson 1583-1663. (Jeremy Taylor was also born in 1613). The Christian man's calling by George Swinnock appeared in 1663.
Given the subject, it is perhaps worth noting that Eusebius the first church historian lived c 263-339. In 313 the Edict of Milan was passed giving freedom to Christians in the Roman Empire.