HistoryPrehistoric (Ice Age, ~16,000-25,000 years ago)Sulawesi, Indonesiahigh confidence

Archaeologists found the world's oldest evidence of habitual drug use in the teeth of a hunter-gatherer who lived up to 25,000 years ago, who may have regularly sucked on mind-altering betel nuts.

Notes on verification

Peer-reviewed study in Science Advances corroborated by multiple independent outlets (ABC News, Live Science, CNN, ScienceDaily) and independent expert commentary from archaeologists not involved in the research.

Sources