Shichi-Go-San
rite of passage and festival day in Japan for 3-, 5- or 7-year-old children in mid-November / From Wikipedia, the free encyclopedia
Shichi-Go-San (seven-five-three in Japan) is one of the most important events for children in Japan.[1] Every year on November 15, parents whose children are three, five, and seven years old celebrate the growth of their child.