When did the first international earth day celebration occur?

~Hello there! ^_^

Your question: When did the first International Earth Day celebration occur..?

Your The first International Earth Day was taken place on the 2nd Of April, 1970.

Hope this helps!~

“destroyers for bases agreement in the destroyers for bases agreement between the united states and the united kingdom on september 2, 1940, fifty caldwell , wickes, and clemson class us navy destroyers were transferred to the toyalbnavy from the united states navy in exchange for land rights on british possessions.” i hope this you .