Dates To Remember Perpetual Calendar DATES TO REMEMBER Perpetual Wall Calendar Format: Undated Perpetual Wall Calendar 11" X 6" (approx), binding: wire-O hanger keepsake in which to record birthdays, anniversaries and all other yearly special dates. Keep track of friends and family birthdays, anniversaries and all other recurring special occasions. Dates To Remember is a perpetual calendar can be added to year after year. This new version is filled with fun colorful illustrations. Earth friendly, printed with soya-based inks on FSC certified paper. A great gift any time of the year.