Date of a Unit | EADiva Toggle navigation About Blog Me Contact List of Elements Alphabetical List of Elements Sample EAD Files Submit A Plain-Talking EAD Tag Library Home About List of Elements Alphabetical Element List Sample EAD Files Blog Me Contact Date of a Unit is used to encode the creation year, month, or day of the described materials. It may in the form of text or numbers and either a simple date or range. It is found within and its subelements and is only used to encode creation or relevant dates of described materials. Other types of dates should be encoded within . It is comparable to ISAD(G) element 3.1.3, and MARC fields 245 subfield f for inclusive dates, 245 subfield g for bulk dates, or 260 subfield c. may be used within , , , , , , ,