[At Gunung Padang] First, the drill cores contained evidence — fragments of worked columnar basalt — that more man-made megalithic structures lay far… - Graham Hancock

Across the ages and regardless of geography, in everything that really matters, it bears repeating that we are all members of a SINGLE human family — a family of intrepid adventurers who have been exploring the world in one form or another for the best part of a million years.18 In the course of this long odyssey we've moved so far apart, across oceans, over mountains, and to the opposite ends of jungles, deserts, and ice caps that we've forgotten how closely related we in fact are. In this sense, like the simple human message of the burials, the message of genetics also speaks to a hidden unity within our apparent diversity — and sometimes in ways that defy our expectations.

Eight thousand years is a very long time but

A 24,000-year sequence recorded in a marine core from the Santa Barbara Basin, off the coast of California, exhibits the highest peak in biomass burning precisely at the onset of the Younger Dryas. ... This anomalously high peak correlates with intense biomass burning documented from the nearby Channel Islands. ... The peak also coincides with the extinction of pygmy mammoths on the islands and with the beginning of an apparent 600-800-year gap in the archaeological record, suggesting a sudden collapse in island human populations.