Earthgrid asks:

: Do you have a process in place to query a massive global
: historical event database, and tell is which dates are
: multiples of 260 days away from a given date?

FrancisDrake replies:

I do not have a computer program, but I use the online calculators at http://www.pauahtun.org/Calendar/tools.html (enter JD 679107) and https://www.timeanddate.com/date/duration.html ....mostly a database in my head, I've viewed hundreds of thousands of news and history reports
since 1974 when I was nine years old.... i have to go for now i will post more of a reply later tonight, thanks for your awesome query and research on the 260, I honestly believe the NSA etc could productively analyze the 260 count...

--FrancisDrake

: I compiled various dates together and got a list of 116000+
: events (major quakes, plane crashes, etc). Then did an

: Excel filter for XDateDif(Date-X) MOD 260 = zero.

: I found these events are multiples of 260 days away from JFK's
: assassination: JFK-deaths-matching-260-day-cycle.txt

: I found these events are multiples of 260 days away from
: Trump's birth: Trump-DOB-matching-260-day-cycle.txt

: Excel 2010 only gives us a million rows to process at once,
: and I don't have a Microsoft Access version of JWalk's
: XDATE.XLA to handle pre-1900 dates.

: That's the thing I would keep asking for a given date: just
: query the global event date database, and pop out huge
: lists of 260-day multiples.

: Am I the only one curious about this stuff? Don't you want to
: know the other events that are multiples of 260-days away?
: Apparently no one offers these types of lists as a comment
: when these 260-day notes are posted. It should be the
: default to just give us the list of a thousand other events
: that happened on various 260-day multiples of days.

: If anyone cares I can add hundreds of thousands more dates.