What do you give the queen who has everything? When Mark Antony was wondering how to impress Cleopatra in the run-up to the battle of Actium in 31BC, he knew that jewellery would hardly cut it. The queen of the Ptolemaic kingdom of Egypt had recently dissolved a giant pearl in vinegar and then proceeded to drink it, just because she could. In the face of such exhausted materialism, the Roman general knew that he would have to pull out the stops if he was to win over the woman with whom he was madly in love. So he arrived bearing 200,000 scrolls for the great library at Alexandria.
