|One depiction of a multi-year date from a Robert Hicks sketch.|
|Another depiction from a William Mann sketch.|
|Pope Gregory whose decree caused |
the calendar shift starting in 1582.
|Depiction of the shift from Julian to Gregorian.|
| On this marriage certificate, made out in 1907 in Warsaw |
(then part of the Russian Empire), the month is given as
"November/December", and the day as "23/6".
The Julian date 23 November corresponded
to the Gregorian 6 December.