The Symbol of the Skull & Bones
Where is it found in history?
Knights Templar, Occult & Murderous Pirates, Nazi SS, Order of the Skull & Bones
Adolf Hitler Flag
The "Death's Head"
What groups? What movements? What do they have in common?
What significance does it have today?
It's not a college fraternity. It's a life-long secret society.
Wikipedia article: The Order of the Skull & Bones