Re: The Emacs Calculator and calendar

[Richard Stallman]

    Usually either both dates are supplied or they are more or less clearly
    marked "old style".  When a date in 1700-1918 is supplied without an
    old/new style note, half the readers assume old style and half the new
    style; this confusion is so common, that lack of a style note is a sure
    sign that the date is not to be trusted (to the extent that it may be
    wrong in either style).

This suggests that, at least for the case of Russia, it is no problem
if the Emacs calendar uses the Gregorian calendar (as now) for Russia
in that period.

What did Russia do for a calendar before 1700?  And what do modern
historians use when writing dates for that period?

-- 
Dr Richard Stallman
President, Free Software Foundation
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