The calibrated dates — converted from raw radiocarbon years to actual calendar years using the atmospheric radiocarbon record — place the burial in the heart of the Clovis period, when Clovis technology was being used across a large portion of North America.

The Clovis culture is defined in the archaeological record primarily by its distinctive fluted projectile points, which are found across a vast geographic area from Alaska to Central America and from the Pacific coast to the Atlantic.

The dates from Clovis sites across this range cluster closely around 13,000 to 14,000 calibrated calendar years before present, indicating that Clovis technology spread across the continent with remarkable speed — a pattern consistent with a population expanding rapidly through previously unoccupied or sparsely occupied territory.

The Anzick burial’s dates place it within this Clovis horizon.