Astronomical Year Numbering - Signed Years Without Year 0

Signed Years Without Year 0

Although he used the usual French terms "avant J.-C." (before Jesus Christ) and "après J.-C." (after Jesus Christ) to label years elsewhere in his book, the Byzantine historian Venance Grumel used negative years (identified by a minus sign, −) to label BC years and unsigned positive years to label AD years in a table, possibly to save space, without a year 0 between them.

The XML Schema language, sometimes used in connection with representing data for storage in computers, contains built-in primitive datatypes, date and dateTime, which do not allow a year zero, and designate years BC as negative numbers. Years contain at least four digits. Thus -0001 in that language is equivalent to 1 BC. However, the defining recommendation indicates a change to a system similar to ISO 8601 and astronomical year numbering is likely in the future.

Read more about this topic:  Astronomical Year Numbering

Famous quotes containing the words signed, years and/or year:

    I remember a very important lesson that my father gave me when I was twelve or thirteen. He said, “You know, today I welded a perfect seam and I signed my name to it.” And I said, “But, Daddy, no one’s going to see it!” And he said, “Yeah, but I know it’s there.” So when I was working in kitchens, I did good work.
    Toni Morrison (b. 1931)

    I do not, like the Fundamentalists, believe that creation stopped six thousand years ago after a week of hard work. Creation is going on all the time.
    George Bernard Shaw (1856–1950)

    It’s enough for you to do it once for a few men to remember you. But if you do it year after year, then many people remember you and they tell it to their children, and their children and grandchildren remember and, if it concerns books, they can read them. And if it’s good enough, it will last as long as there are human beings.
    Ernest Hemingway (1899–1961)