From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f7be1,be6b7e036aa9236c X-Google-Attributes: gidf7be1,public X-Google-Thread: 11390f,be6b7e036aa9236c X-Google-Attributes: gid11390f,public X-Google-Thread: 101deb,be6b7e036aa9236c X-Google-Attributes: gid101deb,public X-Google-Thread: 1094ba,be6b7e036aa9236c X-Google-Attributes: gid1094ba,public X-Google-Thread: 1164ba,be6b7e036aa9236c X-Google-Attributes: gid1164ba,public X-Google-Thread: 103376,be6b7e036aa9236c X-Google-Attributes: gid103376,public X-Google-Thread: fa0ae,be6b7e036aa9236c X-Google-Attributes: gidfa0ae,public X-Google-Thread: 1014db,be6b7e036aa9236c X-Google-Attributes: gid1014db,public From: "Norman H. Cohen" Subject: Re: language wars (results 13 September) last posting Date: 1996/09/18 Message-ID: <32406D89.233E@watson.ibm.com>#1/1 X-Deja-AN: 181456641 distribution: inet references: <51bv60$8d@pheidippides.axion.bt.co.uk> content-type: text/plain; charset=us-ascii organization: IBM Thomas J. Watson Research Center mime-version: 1.0 reply-to: ncohen@watson.ibm.com newsgroups: comp.lang.ada,comp.lang.apl,comp.lang.basic,comp.lang.c,comp.lang.fortran,comp.lang.perl.misc,comp.lang.pl1,comp.lang.rexx,comp.lang.pascal.misc,comp.lang.smalltalk x-mailer: Mozilla 3.0 (Win95; I) Date: 1996-09-18T00:00:00+00:00 List-Id: Andrew Gierth wrote: > Useless (but true) factoid: > > The 13th day of the month is more often Friday than any other day of the > week. I apologize for the off-topic posting (especially when it is cross-posted to so many newsgroups, and thus off so many topics at once), but it should be pointed out, before this becomes an urban legend, that this "factoid" is patently false! In any 2800-year cycle, the 13th will come out on each day of the week the same number of times. In fact, this is true of any 28-year cycle that does not include a century year that is not a leap year (e.g. 1800, 1900, 2100, 2200). -- Norman H. Cohen ncohen@watson.ibm.com http://www.research.ibm.com/people/n/ncohen/