Respuesta :
~Hello there! ^_^
Your question: When did the first International Earth Day celebration occur..?
Your answer: The first International Earth Day was taken place on the 2nd Of April, 1970.
Hope this helps!~
Your question: When did the first International Earth Day celebration occur..?
Your answer: The first International Earth Day was taken place on the 2nd Of April, 1970.
Hope this helps!~