Assize of Clarendon
The Assize of Clarendon was an act of Henry II of England in 1166 that began a transformation of English law and led to trial by jury in common law countries worldwide, and that established assize courts. Prior systems for deciding the winning party in a case, especially felonies, included trial by ordeal, trial by battle, or trial by compurgation (trial by oath), in which evidence, inspection, and inquiry was made under oath by laymen, knights or ordinary freemen.