SciencePrehistoric (Younger Dryas, ~10,000 BCE)Abu Hureyra, Syriahigh confidence

Soil samples from Abu Hureyra contained melt glass—vaporized soil that rapidly solidified—associated with seeds and cereal grains, with most fragments measuring 1–2 millimeters across.

Notes on verification

Confirmed by primary peer-reviewed study (Kennett et al., Scientific Reports/PMC7060197) and multiple independent secondary sources (Eos, Syfy Wire, Smithsonian). Specific size detail (1-2mm) corroborated across sources. [tier=gold indep_score=0.867 clusters=3 claim_tier=notable]

Sources

Soil samples from Abu Hureyra contained melt glass—vapori… · DeepInquiry