On October 15, Orthodox believers honor the memory of three martyrs who gave their lives for the Christian faith: Cyprian, Justina, and Theoktistos.
According to the folk calendar, Kupriyanov Day was celebrated, on which it was customary to gather together and do handicrafts.
On this day, they observed the weather and judged what the autumn and winter would be like.

Name day October 15
Today the following people celebrate their name day: Andrey, Anna, Boris, Vasily, Georgy, David, Ivan, Konstantin, Mikhail, Petr, Stepan, Fedor.
Nature generously rewarded the birthday boys with artistry and the talent to light up other people's hearts.
Those born on October 15 are distinguished by their ability to maintain a conversation in any company, while they love to argue and prove their case to everyone.
Weather signs
On Kupriyanov Day, they watched the sky. It was believed that if a rainbow halo appeared around the moon, there would be bad weather and strong winds ahead.
A cold winter was indicated by pouring rain, and a wind blowing in a northerly direction indicated that the winter would be warm.