In November 1949, the International Democratic Women's Federation held a board meeting in Moscow. Representatives from China and other countries angrily exposed the crimes of imperialists and reactionaries in various countries who killed and poisoned children. The meeting decided to take June 1st of each year as International Children's Day.

It is a festival established to protect the rights to survival, health care, education and custody of children all over the world, to improve children's lives, and to oppose child abuse and poisoning. At present, many countries in the world regard June 1 as children's holiday.

Sweden also divides Children's Day into details. August 7th every year is "Boys' Day", also known as "Lobster Day", which means to encourage little boys across the country to learn the brave spirit of lobsters. On this day, the children will dress up as lobsters and perform some very lively and cute performances.

December 13th is Sweden’s “Girls’ Day”, also known as “Lucia’s Day”. Lucia is a goddess who protects girls in Swedish legend. Every festival, girls dress up like the goddess and do good deeds for other children.