The earliest legend of the origin of a fir tree becoming a Christian symbol dates back to 723 AD, involving Saint Boniface as he was evangelizing Germany. It is said that at a pagan gathering in Geismar where a group of people dancing under a decorated oak tree were about to sacrifice a baby in the name of Thor, Saint Boniface took an axe and called on the name of Jesus. In one swipe, he managed to take down the entire oak tree, to the crowd's astonishment. Behind the fallen tree was a baby fir tree. Boniface said, "let this tree be the symbol of the true God, its leaves are ever green and will not die." The tree's needles pointed to heaven and it was shaped triangularly to represent the Holy Trinity.