Radio carbon dating stone
Improved techniques now date the earliest stone structures at Stonehenge to about 2600 B. magazine noted when reporting the 1952 dating, Stonehenge has been "credited, at one time or another, to the Phoenicians, Celts, Romans, Sumerians, Druids and early Christians."Sir Joseph Norman Lockyer, who co-discovered helium and founded the journal, Nature, wrote in 1901 that the Heel Stone section of Stonehenge "had been originally aligned with the summer solstice" and calculated that it was built in 1800 B. Further investigations have suggested that Stonehenge was an astronomical observatory, a place of worship and healing or perhaps a cemetery.
Whatever its exact history, origins or age, thousands each year flock to Stonehenge to welcome the sun on the summer solstice.
Correction: The original version of this post misstated the cause of inaccuracy in first-generation radiocarbon dating.
Radiocarbon dating works by comparing the three different isotopes of carbon.
Radiocarbon dates are presented in two ways because of this complication.
The uncalibrated date is given with the unit BP (radiocarbon years before 1950).
Rachel Wood does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Radiocarbon dating has transformed our understanding of the past 50,000 years.