displaced
131SO(4) — In mathematics, SO(4) is the four dimensional rotation group; that is, the group of rotations about a fixed point in four dimensional Euclidean space. The name comes from the fact that it is (isomorphic to) the special orthogonal group of order 4 …
132Civil war in Iraq — Civil war/sectarian violence in Iraq Part of Iraq War and Iraqi insurgency Date February 2006 May 2008 …
