I added a new article to Wikipedia entitled "descendent genealogy." Later I learned a little about Wikipedia categories and realized that it would fit under the category of "Information systems." That is a very broad category and it seemed reasonable to add the subcategory of "Genealogy information systems." This led to the need to add a new category of "Genealogy information systems," and then to quickly write a related article entitled "Genealogy information systems" since that seems to be the way Wikipedia organizes its categories and related articles. My original entry quickly became three entries. It is obviously rather difficult to get every article and every entry perfectly right the first time for a newbie. If the Wikipedia editors and system will not get excessively impatient, I will come back and improve all of these things.