Asvamedha

Also spelled  Aswamedha, Ashvamedha, or Ashwamedha,   grandest of the Vedic religious rites of ancient India, performed by a king to celebrate his paramountcy. The ceremony is described in detail in various Vedic writings, particularly the Satapatha Brahmana. An especially fine stallion was selected and was allowed to roam freely for a year under the protection of a royal guard. If the horse entered a foreign country, its