==Date Code==
Classification RB is organized by the date of birth of the biographee. When the subject is a couple, the birth date of the senior is used (as Victoria for Victoria & Albert). This avoids the challenges created by monarchs who ruled multiple countries, variations in the spelling of names, and the inadequacy of House names for identification. It has the benefit of shelving contemporaries near one another. Birth dates can be difficult to find, especially in antiquity, but they permit the shelving of living monarchs and heirs, which death dates would not, and coronaiton coronation dates, which not all achieve. When dates are uncertain, the date given by [https://en.wikipedia.org/wiki/Main_Page Wikipedia ] is normally used.
Dates BC are preceded with those initials, and all dates are padded to four digits. Thus:
*1819
When on the suprisingly rare occasions when more than one notable is born in the same year, more specific dates are used, the months padded to two digits:
*1819.-05*1819.-07*1819.-10
It has not yet been found necessary to add the dateday, but at need that would be added in the same way as the month. Beyond that, we'll have to think on it. So far, twins have all been dealt with in the same volume.
=Third Line=