If you have ancestors who share the same name, or if you've collected a lot of information on several generations of ancestors, you may have trouble distinguishing one person from another. For example, Matthew has an ancestor Samuel Abell, who had a son and two grandsons also named Samuel Abell. To avoid confusion and the problems that can arise from it, you may want to use a commonly accepted numbering system to keep everyone straight. Now genealogical numbering systems can be a bit confusing (and talking about them can be a little boring) but we'll do our best to make it as simple as possible and to give you a few examples to make it a little clearer.
The ahnentafel (Sosa-Stradonitz) system
One well-known numbering system is called ahnentafel, which means "ancestor" (ahnen) and "table" (tafel) in German. You may also hear the ahnentafel system referred to as the Sosa-Stradonitz system (the names get easier, trust us) of numbering because it was first used by a Spanish genealogist named Jerome de Sosa in 1676, and was popularized in 1896 by Stephan Kekule von Stradonitz.
The ahnentafel system is a method of numbering that shows a mathematical relationship between parents and children. Ahnentafel numbering follows this pattern:
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