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- Newsgroups: lobby,comp.lang.c,seattle.general,alt.folklore.computers
- Path: news.sprintlink.net!eskimo!scs
- From: scs@eskimo.com (Steve Summit)
- Subject: It's leap year day today!
- X-Nntp-Posting-Host: eskimo.com
- Message-ID: <DnK24F.HDn@eskimo.com>
- Followup-To: poster
- Sender: news@eskimo.com (News User Id)
- Organization: schmorganization
- Date: Thu, 29 Feb 1996 20:55:26 GMT
-
- [I'm posting this to several miscellaneous newsgroups, although
- it's not particularly relevant to any of them. Please note that
- I've redirected followups.]
-
- On the occasion of February 29th, I thought I'd send a little
- message to anyone who believes, or who knows anyone who believes,
- or who might at some point run in to anyone who believes, that
- for some reason this is the last leap year day we'll have in
- eight years.
-
- If you know that 2000 will be a leap year and why, you don't need
- to read this message.
-
- If however, you have heard that every 100th year is not a leap
- year, read on. If someone told you that every 100th year is not
- a leap year, and that's all they told you, they did you a grave
- disservice, and they probably didn't know what they were talking
- about. Rather than go into the real rule, which is evidently a
- bit too complicated to understand, let me suggest that you ignore
- that someone, forget what they said, and pretend that the rule is
- "every four years is a leap year, period." That simplified rule,
- though inaccurate, is very likely to be accurate for your
- lifetime. In particular, it predicts that 2000 will be a leap
- year, which is in fact the case (that is, 2000 is also a leap
- year under the more complicated rules which are in fact currently
- in effect).
-
- If you have any questions about these curious rules, please send
- e-mail to me directly, as I've set the Followup-To: line to
- indicate. Misperceptions about leap years are discussed ad
- nauseum all across Usenet, and my purpose here is *not* to start
- another such thread. If you feel compelled to follow up anyway,
- I insist that you quote this entire message, not just part of it.
- (Also, if you're thinking of posting to warn everyone about the
- nonsense I'm spouting, and to tell them about this little-known
- rule you know of that every 100th year isn't a leap year, do
- yourself a favor and find out what the real rules really are
- first. The 100-year rule is not little-known; it's all too well
- known.)
-
- Steve Summit
- scs@eskimo.com
-
- P.S. The real rules under the Gregorian calendar, of course, are
- that a year is a leap year if it is divisible by 4 or 400, but
- not if it is divisible by 100 and not divisible by 400. 1900 was
- not a leap year; 2000 will be; 2100 will not be. Rumors abound
- about a hypothetical 4000-year rule, and some references even
- suggest that one exists, but it exists in the imagination only;
- with the possible exception of a now-defunct Russian government,
- no one has yet formally adopted a 4000-year rule.
-