April 2nd International Children's Book Day (you can go to the orphanage to express condolences and donate books).
April 7th World Health Day 1950 (public areas can be cleaned).
April 2 1 National Entrepreneur Activity Day 1994 (Visiting famous entrepreneurs, entrepreneurs entering campus activities)
April 22nd Earth Day 1970 (Earth Hour Event)
World Law Day (Defending the Rights and Interests of Women and Children)
April 23rd World Book and Copyright Day (library publicity)
April 24th, World Youth Anti-Colonization Day 1957 (Diaoyu Island Knowledge Presentation, Anti-Colonization)
April 26th World Intellectual Property Day 200 1 (Intellectual Property Publicity)
April 30th National Traffic Safety Reflection Day (don't run the red light, please take the zebra crossing, traffic propaganda, at the street intersection).
On the third Sunday in April, World Children's Day 1986 (Visiting Children)
I hope I can help you.