In parochial school, we called it the "Protestant Revolt". Just a little laugh from 30 years ago.
A better name than Reformation. Over the span of centuries it is easy to ignore how radical Luther was and so hard to reconcile. Richard Marius, a secular biographer of Luther, has opined that in view of what happened between 1519 and 1648, it probably would have been better if Luther had suffered the fate of Hus.