1. equinoctial ceremony held by the emperor at the shrine of imperial ancestors
Wikipedia definition
2. Kōreisai, or Shun-ki and Shū-ki Kōreisai, are days of worship in Japan that began in 1878 to pay respects to the past emperors and imperial family members. It occurred on the spring and autumn equinoxes of the anniversary of the person's death. After the 1948 passing of the Act on National Holidays, these days were marked in a non-religious manner as the national holidays of Vernal Equinox Day and Autumnal Equinox Day.
Read “Kōreisai” on English Wikipedia
Read “皇霊祭” on Japanese Wikipedia
Read “Kōreisai” on DBpedia


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