The Gelalaean aera (Gelaleddin, Glory of the Faith, was one of the names or titles of Malek Shah) is fixed to the xvth of March, A. H. 471, A.D. 1079. Dr. Hyde has produced the original testimonies of the Persians and Arabians, (de Religione veterum Persarum, c. 16 p. 200 - 211.)