15 June

On 15 June 1215, despite the Master's efforts to the contrary, the Magna Carta was signed. (TV: The King's Demons)

Eight centuries later, Dr Harry Sullivan wrote a memo to Dr Callum Jeffries of UNIT, claiming to have made a significant discovery in the fight against HIV. David Daniels, Sullivan claimed, was HIV positive, but surviving because of a metagenic compound within his bloodstream that was acting as an antivirus. (PROSE: Damaged Goods)