It is said that on June 16 in the first year of Kasho (848), 16 pieces of confectionery and rice cakes were prepared for a shrine offering and prayers were said for epidemic prevention and good health.
そして、その元年（848年）の6月16日に、16個の菓子や餅を神前に供えて、疾病よけと健康招福を祈ったとされる。