Uploaded May 2026 | Updated September 2026, 2 weeks ago

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2 parents. 4 grandparents. 8 great-grandparents…

The numbers are supposed to double every generation.

But if you go back far enough, your family tree starts repeating itself.

Because centuries ago, most people lived in the same towns and communities for generations, the same ancestors often appear multiple times in your tree. This is called pedigree collapse.

The further back you go, the more connected family history becomes.

Explore your own family tree on myheritage.com

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