Oh dear, I expected better

Brian Sewell has just rather blotted his copy book by suggesting that the Pantheon in Rome was built in the lifetime of Christ. This is true neither of Marcus Agrippa's original Pantheon, which date to 27 BC, and so is about a quarter century before Christ's birth, nor of Hadrian's replacement, the building that survives today, which was constructed in AD 125. Now, I expect to disagree with Sewell's views at times (like his preference for the dubious charms of Naples over the fantastic Rome), but I never expected him to slip up on basic facts.