Is there a code for outdated country names?
Yes. The ISO 3166-3 code for formerly used names of countries gives codes for all country names deleted from ISO 3166-1 since its first publication in 1974. The French member organization of ISO, AFNOR, has developed a French experimental standard on historical country names. It has the reference XP Z 44-002 (published in August 1997). This national standard is based on ISO 3166-1 and encodes outdated names of countries on a really historical scale, i.e. dating back to at least the year 1815 and including all regions of the world. For more information on this document please contact AFNOR citing the standard’s reference number.