Spot the Mistake.

This is the print screen of my varsity student portal. I think they need to check the spelling before putting it up. Calender?

From http://dictionary.reference.com/browse/calender, Calender is define as
1. a machine in which cloth, paper, or the like, is smoothed, glazed, etc., by pressing between rotating cylinders.
2. a machine for impregnating fabric with rubber, as in the manufacture of automobile tires.

LMAO.