Druidism

Druidism is the religion practiced by Druids.

Even though Christianity worked hard in the past to kill off this ancient religion, and to kill off its followers by such activities that probably included burning at the stake, Druidism is still alive and well. 

Druidism, unlike Christianity and other Revealed Religions, does not seem too have any desire to murder others simply because they follow a different religion and/or use a different name for the Supreme Being.