Self-immolation refers to setting oneself on fire, often as a form of protest or for the purposes of martyrdom or suicide. It has centuries-long traditions in some cultures, while in modern times it has become a type of radical political protest. Michael Biggs compiled a list of 533 “self-immolations” reported by Western media from the 1960s to 2002, though in this work his definition is generalized to any intentional suicide “on behalf of a collective cause.”