Dates to Remember Perpetual Wall Calendar DATES TO REMEMBER Perpetual Wall Calendar Format: Undated Perpetual Wall Calendar 11" X 6" (approx) keepsake in which to record birthdays, anniversaries and all other yearly special dates. A lovely keepsake in which to record birthdays, anniversaries and all other yearly special dates. Can be added to year after year. This version is filled with new fun and colorful illustrations. A great gift for any occasion.