The Bogotá Altiplano, standing at the junction of the Americas, preserves in its earth a record of multiple human beginnings and endings.

The Checua people are one of those beginnings — visible now, for the first time, through the molecular traces they left behind.

Whether traces of their lineage persist in living populations not yet studied is a question that future research will address.

Whether the mechanisms of their replacement will ever be fully understood depends on finding biological material from the four-thousand-year gap that separates their 6,000-year-old record from the 2,000-year-old record of the people who followed them.

What is not in question is that they were here.