Julian calendar dates

I've seen a few profiles have the Julian date entered into the About Me.

It would be nice if Geni could support multiple calendar systems much like the multiple languages for names.

The following problem can also arise in some cases. Geni calculates the age at death under the assumption that the dates of the birth and of the death are given in one and same calendar system – either they both are Gregorian dates, or they both are Julian ones. If the birth date is given according to the Julian calendar, whereas the date of the death is according the Gregorian calendar, then an error by one in the calculated age at death is possible. For instance, if a person is born in Russia on February 25, 1917 (according to the Julian Calendar), and this person died on March 1, 1990, then the person's age at death will be 72, and not 73 (since the Julian date February 25, 1917, coincides with the Gregorian date March 10, 1917).

Does it matter?
As Jonathan I would also recommend that you writes thing in the About Me if the dates are confusing.

What we cannot have is an automatic Julian/Gregorian calculation simply because it varies a lot depending on where this person lived when the calendar change was made, and believe me: Even if a country has an official date for the change you cannot trust that written records changed at that date.

An automatic Julian/Gregorian calculation would be quite easy if there was a standard way to indicate in the corresponding fields whether the dates we enter are Gregorian or Julian (the information is supposed to be given by the user who enters the dates).

This problem has occurred in astrology software where it has been solved by program using the place of birth together with birth time as a reference for calculating the age either by Julian or Gregorian. It just needs two variables and a specification in program whether there was Julian or Gregorian in use at that time and that place. Seems simple.