Hello Art,
They would be using the Gregorian Calendar exclusively I believe.
Savants solving the weekday problem over a great span primarily make use
the fact that a given weekday consistently repeats itself every 28yrs.
Freq_1 (7days per weekday) * Freq_2 (4years per 1 day) = 28years per
weekday. Of course the number of missed leap days in a given span must
also be accounted for.
Best Regards,
Luke
Arthur Carlson wrote:
>
> I wonder something every time I hear about idiot savants who can tell
> the day of the week of any calendar date. Do they ever make the
> switch from the Julian to the Gregorian calendar? If so, when? I
> suspect the psychologists examining them don't know enough about the
> calendar to realize there is an issue. It's like claiming they can
> recognize any prime number instantly without asking, say, if the
> product of two particular ten digits primes is prime.
>
> Art Carlson
