Researchers Used This Genealogy Site to Build a 13 Million-Person Family Tree
In the last 20 years, genealogy websites have attracted more than 15 million customers by promising insights into your past. Maybe you\u2019ll uncover a secret infidelity or be reunited with a long-lost cousin, like when Larry met Bernie on Finding Your Roots. It\u2019s deeply personal, affecting stuff. But when your family tree contains thousands, millions, even tens of millions of people, it\u2019s no longer a personal history. It\u2019s human history.