Hinamatsuri, also called Doll's Day or Girls' Day, is a time when Japanese families display a set of dolls of the emperor and empress in traditional kimono attire. Celebrated on Mar. 3, the holiday is a celebration of Japan’s daughters and to pray for their happiness. On this day, families will celebrate with special sweets and rolled sushi. You may also notice giant displays of dolls for sale and celebratory foods on sale at your local department stores, all for Hinamatsuri.