Bad holiday with (calendar-mark-holidays)

[Christopher Dimech]

I am getting many warnings about "Bad holiday list item:"
when I call

(require 'calendar)
;;(require 'holidays)
(setq holiday-solar-holidays
   '((holiday-fixed 11 22 "First Quarter Moon")) )
(calendar-mark-holidays)







Error (holidays): Bad holiday list item: (holiday-fixed 1 1 New Year's Day)
Error: (void-variable displayed-month)

Error (holidays): Bad holiday list item: (holiday-float 1 1 3 Martin Luther 
King Day)
Error: (void-variable displayed-month)

Error (holidays): Bad holiday list item: (holiday-fixed 2 2 Groundhog Day)
Error: (void-variable displayed-month)

Error (holidays): Bad holiday list item: (holiday-fixed 2 14 Valentine's Day)
Error: (void-variable displayed-month)