This schema describes a PERSON element intended for use in family tree documents. It was developed as an example for Chapter 25 of the XML Bible, 3rd Edition, by Elliotte Rusty Harold (elharo@metalab.unc.edu) Published by Wiley 2004. ISBN 0-7645-4986-3. This schema is placed in the public domain. Please feel free to use it or adapt it in any way you like. It is not a formal standard, and has not been considered or approved by any standards body. The EventType describes occurrences at a certain time and place, though the exact time and place may not be known for certain. Events include marriages, births, deaths, baptisms, and burials. The PersonRefType contains a pointer to a person encoded in a PERSON element somewhere in this document. The pointer is the ID of the PERSON pointed to. The ReferenceType contains a pointer to a SOURCE element somewhere in this document. The pointer is the ID of the SOURCE element pointed to. The NoteType is used for NOTE elements that contain mostly narrative text discussing whatever seems interesting about or relevant to a particular element. The contents of the note are marked up in XHTML Basic. (http://www.w3.org/TR/xhtml-basic) The PersonType is used for PERSON elements. It describes one unique individual, with a name, a birthday, and so on. However, some or all of the information about this individual may be unknown and hence omitted. PERSON elements may be used as the root element of a document. No other element declared in this schema may be so used.