Saint Patrick

Pious legend credits St. Patrick with banishing snakes from the island,[53] however all evidence suggests that post-glacial Ireland never had snakes.[54] However, one suggestion is that snakes referred to the serpent symbolism of the Druids[55] during that time and place, as exampled on coins minted in Gaul (see Carnutes). Legend also credits St. Patrick with teaching the Irish about the concept of the Holy Trinity by showing people the shamrock, a three-leaved clover, using it to highlight the Christian belief of 'three divine persons in the one God.'[56]