Rare card
Zeller's congruence
- Value
- 50 W
- Attack
- 800
- Defence
- 640
- Players
- 0
Zeller's congruence is an algorithm devised by Christian Zeller in the 19th century to calculate the day of the week for any Julian or Gregorian calendar date. It can be considered to be based on the conversion between Julian day and the calendar date.
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