A chart or record set detailing the direct ancestors of an individual.

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Average number of ancestors

Every individual has two parents, four grand-parents and so on. This would yield an astronomical number of ancestors even after a small number of generations, e.g. 235 ∼ 34 billions. The solution ...
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6answers
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How many ancestors alive 1000 years ago does a person have on average?

I was thinking about something the other day (that is probably stupid), and thought this would be a good place to talk about it. If someone wanted to draw its family tree over the last 1000 years, ...
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8answers
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How well do I know my ancestors (at least superficially)?

What I am hoping to learn in this Question is the correct terminology and any tools available for determining what I will try to describe below. Firstly, I know that I will never know all my ...