The reading passage discussed a common belief about Stonehenge, that Stonehenge was built by the Druids, the high priests of the Celts. lots of people believe this today. I think, if you asked most people who built Stonehenge, they would say, “The Druids” or “The Celts.” But this is clearly not true. Scientific tests today show that this isn’t true. The dates just don’t match up.
First, let me discuss what is known about when the Celts arrived in England. The Celts were flourishing on the European mainland, and they spread out from there to various places, including England. It’s not quite clear when the Celts actually arrived in England; there are two different theories. One theory is that the Celts arrived in England around 1500 B.C., and the alternate theory is that the Celts started arriving in England around 800 B.C. In either case, the Celts were not in England before around 1500 B.C. There is universal agreement on that.
Not for the age of Stonehenge. Modern radiocarbon dating techniques have been used on Stonehenge to determine its age. Radiocarbon testing is a process used to date specimens by measuring the amount of carbon-14 remaining in them. Well, the radiocarbon testing has shown that Stonehenge was built İn three phases. The first phase was around 3000 B.C., and the second phase was around 2800 B.C. The third phase, the phase when the giant stones actually went up, was around 2100 B.C.
You can see from the dates, no matter which theory you believe about the arrival of the Celts in England, that the Celts and their Druid priests had not yet arrived in England when Stonehenge was built and could not possible be the culture that constructed Stonehenge.