Description : it's a symbol of humility since the 3rd century after St Peter was said to have requested an upside down crucifixion as he was not worthy enough to share the fate of Jesus. Due to the resemblance to Thor's hammer the upside down cross has also been used symbolically by those referencing the Nordic legends. It is only later in the 20th century that popular culture has associated it with, and it has been used by, anti-establishment groups to symbolise the defying of cultural norms.