 This date is celebrated as the founding of Ponorogo, and is corroborated by ancient objects, such as a pair of stone gilang located in front of the fifth gate of the Katong Batara tomb complex.The gilang contains the forms of a human meditating, trees, eagle and elephants (candrasengkala gilang memet); all of which combine to represent the Saka year 1496.Ponorogo, generally considered the birthplace of Reog, is also known by the names City (of) Reog and City (of) Rasta.