In the late summer of 1968, a construction crew working on a property near Anzick, Montana, was moving dirt when the blade of an earthmoving machine struck something unexpected.

Not bedrock.

Not clay.

Something that crumbled and broke, and that sent fragments scattering across the freshly exposed hillside.

Workers stopped.

Among the disturbed material were objects that did not look like modern debris.

They looked old — deeply, incomprehensibly old.

What had been disturbed was a burial that had waited, undisturbed, for approximately 13,000 years.

The human remains belonged to a very young child — an infant or toddler, almost certainly under three years of age, possibly younger.

The bones were fragmentary, incomplete, and stained red with ochre, the iron oxide pigment that Clovis people used in burial contexts.

With the child’s remains were artifacts.

Not a few, but an extraordinary concentration of them: more than 100 pieces, including finished Clovis projectile points and the bifacially worked stone blanks called bifaces that Clovis people carried as raw material to be shaped into new tools as needed.

The child’s burial at Anzick, Montana would eventually become one of the most important archaeological discoveries in the history of American prehistory.

Not just because of its age, though the age is extraordinary.

Not just because of the artifacts, though they are among the finest Clovis tools ever found.

But because of what happened decades later, when the descendants of those ancient people — living Native American families — worked together with scientists to study the genome of the Anzick child, and what that DNA revealed changed the way researchers understood the most fundamental question in American archaeology: who were the first Americans, and where did they come from?

This is the story of that child, that burial, those weapons, and what they meant — not just for science, but for the living people who count the Anzick child as an ancestor.

The World That Child Was Born Into