Common

Knuckle mnemonic

Mnemonic for the number of days in each month

Knuckle mnemonic

Common card · No. 492296

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

Read on Wikipedia · Image Tijmen Stam / IIVQ, CC BY-SA 3.0

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