Regarding the International Children's Day,it is widely celebrated on June 1.Children's Day had its origin in the World Conference for the Wellbeing of Children in Geneva in 1925.The June 1 date has a Chinese-USA origin - and nothing to do with Communism.In 1925,the Chinese consul-general in San Francisco gathered a number of Chinese orphans to celebrate the Dragon Boat Festival.This,of course,coincided with the conference mentioned above.June 1 somehow died out in the USA,only to be revived a couple of years ago.However,each country choses its own day to commemorate it.
source:net