HistoryEarly Stone Age (~476,000 years ago)Zambia, Africahigh confidence

Archaeologists in Zambia found the world's oldest known wooden structure: two interlocking logs connected by a notch, dating to about 476,000 years ago.

Notes on verification

Confirmed by peer-reviewed Nature paper and corroborated by multiple independent journalistic sources (CNN, Live Science, university press release). Details on dating method, location, and structure match primary source. [cascade flags: aggregator_dropped_primary_exists | tier=silver indep_score=0.95 clusters=3 claim_tier=exceptional]

Sources