Children's Day, known as "Kodomo no Hi" in Japanese, is a celebration of children's growth and a wish for their future success. Families display koinobori (carp streamers) and kabuto (samurai helmets) to express their celebratory wishes. Although it's called Children's Day, the event primarily honors boys. Girls are celebrated on a different day, known as Hinamatsuri, and each occasion is marked in distinct ways. The origins of Children's Day trace back over a thousand years to the Nara period. Initially, the significance of the day was to pray for the health of children, particularly because early May, when Children's Day is celebrated, is a time of seasonal change which often brought illness. Over the centuries, the content and significance of the celebration have evolved. By the Edo period, it had largely taken the form we recognize today.