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On Aug 27, 2004, at 11:40 AM, Rebecca S. Guenther wrote: > 1. There has been a suggestion to parse dates so that birth and death > dates > can be determined. One approach would be to use ISO 8601 and include a > slash (/) between the start and end date. A second approach would be > to use > a hyphen (-) instead, as prescribed by AACR2. A third approach is to > explicitly distinguish these as elements. If you don't go with the third one (I guess my suggestion), then I suggest the first. The AACR2 rule here is a bad idea as a general rule for date ranges (.e.g 2004-10-12-2004-10-14). BTW, one of my points about "ref" and such is that it a completely meaningless descriptor. If the semantic meaning is important, it should be a full element, both because it is more precise, and because it gives you flexibility going forward (one can always add additional child element after all). Bruce