International Day for Biological Diversity
International Day for Biological Diversity is observed next on Wednesday, May 22nd, 2019. It was observed annually on December 29th from 1993 until 2000. It has been observed annually on May 22nd since 2001.
|Observed||First Year||Last Year|
|annually on December 29th||1993||2000|
|annually on May 22nd||2001||-|
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