Children's Day (Kodomo no Hi)

What Is Children's Day?

May 5th is "Children's Day" in Japan, one of the nation's public holidays. Established in 1948, its stated purpose is "to respect the personalities of children, to promote their happiness, and to express gratitude to mothers." A defining feature of this holiday is that it's intended for all children, regardless of gender.

The Legal Origins of Children's Day

Children's Day is not merely a custom — it's a holiday formally established by law.

• Established by the Public Holiday Law: May 5th was designated as Children's Day under the Public Holiday Law.
• For all children: While often associated with Tango no Sekku (the traditional Boys' Festival), the law makes clear that this holiday is meant to celebrate the growth and happiness of all children, not just boys.
• Gratitude to mothers: The holiday's stated purpose explicitly includes expressing gratitude to the mothers who raise children.

The Connection to Tango no Sekku

May 5th has long been known as "Tango no Sekku."

• Origins as a seasonal festival: Tango no Sekku is one of the five seasonal festivals (gosekku) that originated in China, traditionally observed as a time to ward off bad luck at the turning of the seasons.
• Its development in Japan: In Japan, the festival became especially associated with samurai society, evolving into an occasion to pray for the health and growth of boys.

Customs Associated With Children's Day

• Koinobori (carp streamers): These colorful streamers are said to originate from banners flown by samurai families during the Edo period, and today symbolize a child's healthy growth.
• Kabuto and armor: Displaying miniature samurai helmets and armor symbolizes protection, expressing the wish to shield children from harm.
• Kashiwa-mochi: These rice cakes wrapped in oak leaves are considered good luck for family continuity, since oak leaves don't fall until new buds appear.
• Shobu-yu (iris-infused bath): The fragrant iris plant has long been used in baths on this day as a way of warding off evil.

Exploring Children's Day More Deeply

• Look into how the Public Holiday Law defines Children's Day.
• Explore how Tango no Sekku came to be linked with this national holiday.
• Compare how koinobori displays and related customs differ from region to region.
• Compare the purpose of Children's Day with Japan's other national holidays.

A Day for Society to Reflect on Children's Wellbeing

Children's Day on May 5th celebrates children's growth while also reaffirming the idea that all of society shares responsibility for supporting them. It's one of relatively few postwar Japanese holidays whose purpose explicitly enshrines "the happiness of all children" in law. Blending traditional customs with a legal foundation, Children's Day offers valuable insight into both Japanese culture and societal values.