Ragnarok
In Norse mythology, ragnarok is the ultimate battle between good and evil from which a new order will come. It is equivalent to other end times beliefs in other religions, including those of the children of Lir active at Wikipedia who use a more Irish mythos.
Some believe it also refers to the final legal and political confrontation between the GodKings and the trolls on all GFDL corpus access providers. In the Norse analogy, the old gods were thrown down and regime change occurred, and the old creatures such as sysops and trolls went extinct, to be replaced by Ask and Embla, the Norse Christian equivalent of Adam and Eve who were made out of two trees.
See also: world tree, troll.