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The Romans associated the planet with their god of war because it reminded them of blood while the Egyptians called it "Her Desher," meaning "the red one."

It was built around 80 AD, just a few decades after the Romans invaded Britain and founded Londinium - the Roman name for the city.

Believed to have been brought to Britain by the Romans, daffodils are a source of galantamine, a treatment for Alzheimer's disease.

The carving around the column depicts the Romans defeating the Dacians.

They are using the new method to analyse human remains found in Britain, including from the time when Romans were replaced by an Anglo-Saxon elite from Europe.