"Evolution Day" meaning in English

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  "etymology_text": "From evolution + day. From being the anniversary day of the day that On Origin of Species by Charles Darwin was originally published in 1859. From On Origin of Species being the seminal work that introduced biological evolution as the origin of the diversity of life on Earth.",
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        "November the 24th; the day that celebrates the publication of On the Origin of Species by Charles Darwin, and evolutionary biology, evolution science."
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          "word": "Pi Day"
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