The International Children’s Day (ICD) is said to have originated in Turkey in 1920 and later in Geneva, Switzerland in 1925, when the World Conference for the Well-being of Children proclaimed June 1st to be International Children's Day. As different reports state Children's day was in a way a coincidence. Two important events took place on 1st June 1925. The first was the World Conference for the Well-being of Children in Geneva. At the same time the Chinese consul-general in San Francisco gathered a number of Chinese orphans to celebrate the Dragon Boat Festival. Since both these incidents had the idea of child welfare at their core, 1st of June began to be celebrated as International Children's Day thereafter.  And by the way, although this day was a popular event in communist countries, International Children’s Day has nothing to do with Communism. 

The holiday is celebrated on 1 June each year. It is usually marked with speeches on children's rights and wellbeing, children TV programs, parties, various actions involving or dedicated to children.