Poster: Celebration on June 1 (updated on Jun 1, 2021)

There are several celebrations on June 1:

1. Children's Day in China: https://en.wikipedia.org/wiki/Children%27s_Day

2. Global Day of Parents: https://www.un.org/en/observances/parents-day

3. Memorial of Blessed Mother Mary, Mother of the Church: https://en.wikipedia.org/wiki/Mother_of_the_Church (in 2020)

4. Lahirnya Pancasila: https://id.wikipedia.org/wiki/Lahirnya_Pancasila

Here is the link on Xiao Hong Shu: 

http://xhslink.com/XCx5Ic