May Day is the traditional holiday for Marxists and other Reds, but I am not writing about that. Instead I will discuss a wonderful mnemonic device for remembering geological periods.
I have been collecting fossils since I was seven years old, and I have memorized the geologic periods many times during my life, but it never sticks. Now, while reading The Sixth Extinction by Elizabeth Kolbert (I will post about that shortly), I came across a mnemonic device to help me remember. It is: Camels Often Sit Down Carefully, Perhaps Their Joints Creak.
That corresponds to: Cambrian-Ordovician-Silurian-Devonian-Carboniferous-Permian-Triassic-Jurassic-Cretaceous. I cannot tell you how happy that has made me.
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