Today in HistoryâDecember 18: Piltdown Man: The Missing Link That Wasnât
At a meeting of the Geological Society of London on this day in 1912, respected paleontologist Arthur Smith Woodward of the British Museum made an announcement that seemed to rewrite human history. For the next 40 years, anyway.
Woodward debuted the bones of what he believed to be a previously unknown extinct hominin (Eoanthropus dawsoni), asserting that they represented the long-sought missing evolutionary link between apes and humans. The fossilsâpieces of a cranium and jawboneâhad come to Woodward by way of Charles Dawson, an English lawyer and amateur fossil hunter. Dawson claimed that they came from a gravel pit at Piltdown Common in southeastern England, giving the remains their common name: Piltdown man.
Some reacted with skepticism to the British Museumâs bold claim. But national pride and deeply ingrained racial and cultural prejudice also influenced reactions. Many Europeans wanted to believe that humanity had evolved on the British Isles, despite mounting evidence pointing to Africa as the cradle of humankind.
Subsequent digs at Piltdown turned up other artifacts that appeared to confirm the discovery. But something didnât add up. Piltdown manâs jaw didnât fit together properly, and no other ancient human fossils showed the same combination of features, with such a large brain case and thick jaw. Piltdown man increasingly clashed with other humanoid fossils emerging in Africa and Asia. By 1930 Piltdown man had become a glaring anomaly in an otherwise orderly fossil record.
Piltdown manâs bones were colored with chromium and iron salts to look aged.
It took until 1953âand the advent of carbon, fluorine, and radioactive datingâto unravel the mystery. With the help of these advances, the bones were exposed as a deliberate forgery: a human skull with orangutan and chimpanzee jaw fragments, chemically treated to appear half a million years old.
Dawson (who died in 1916) remains the likely perpetrator of the hoax, but more than a dozen other suspects have been proposed, some as recently as the 1970s, after the discovery of similarly treated bones among the belongings of a disgruntled British Museum volunteer.
The story of the hoax endures as a cautionary tale; the bones, fittingly, are tucked away in the museum archive, preserved but hidden as a slightly embarrassing chapter in British history.
- 500,000: Age Piltdown man was purported to be
- 50,000: Oldest possible age of the human skull used in the hoax
- 41: Years the Piltdown man hoax persisted
- 1271: Kublai Khan establishes the Yuan dynasty
- 1865: Slavery is abolished in the U.S. (via the Thirteenth Amendment)
- 1966: Dr. Seussâs How the Grinch Stole Christmas premieres on CBS
