Hello, Possibly you have already seen this, but thought I would pass on this handy tip for those who have not :-) Thanks Pat >>>>>>>>>>>> Date: Fri, 17 Nov 2000 18:39:38 -0500 From: MuntzC@netscape.net To: MEKENNEB-L@rootsweb.com Subject: [MEKENNEB] A Bit of Magic Do you know the "8870 Formula"? Using the 8870 formula to ascertain a birth date can be a tremendous help in checking tombstones dates. If a tombstone reveals that the deceased died May 6, 1889 and was 71 years, 7 months and 9 days old, but gives no date of birth, you can correctly arrive at the exact birth date by using this 8870 formula and quickly get the exact date of birth, without counting backward. 18890506 (died 1889 May 6) subtract 710709 (age 71 yrs. 7 mos. 9 days --------- 18179797 8870 (constant) subtract -------- 1817 09 27 (birth date--- 1817 Sept 27 Priscilla >>>>>>>>>>>> <A HREF="http://members.aol.com/gninnah/cemetery.html">Portland,OR - Vancouver,WA Cemeteries & Photos</A> <A HREF="http://members.aol.com/GNINNAH/genealogy.html">GNINNAH's Family Tree & Genealogy Links</A> <A HREF="http://members.aol.com/semopar/zippage.html">Data Transcription Files /A></A>