These children enjoy Hina Matsuri dressed up like dolls themselves. (Ministry of Foreign Affairs)
The practice of displaying these dolls on the third day of the third month on the traditional Japanese calendar began during the Edo period (1603-1868). It started as a way of warding off evil spirits, with the dolls acting as a charm. Even today, people in some parts of the country release paper dolls into rivers after the festival, praying that the dolls take people's place in carrying away sickness and bad fortune.
Most families take their beautiful collection of dolls out of the closet around mid-February and put it away again as soon as Hina Matsuri is over. This is because of an old superstition that families that are slow in putting back the dolls have trouble marrying off their daughters.