Knuckle mnemonic [via Cacciatore]

 





The knuckle mnemonic is a mnemonic device for remembering the number of days in the months of the Julian and Gregorian calendars. 

Starting with the little finger knuckle of the left hand, proceed to the left index finger knuckle, then (swapping hands) jump to the right fist's index finger knuckle for August, finishing on the knuckle of the right ring finger (December).

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