This is animal consciousness, "There is no origin." There must be origin. My origin is my father, cause, I am born by my father. Common sense. Then his father, then his father, his father, go on, go on, although you do not know, but this is a fact: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.