Donkey milk even exist). In addition, the flavour and appearance of donkey milk have been found to be attractive to children. Equid (donkey and horse) milk can be considered a suitable substrate for probiotic beverage production. The use of fermented equid milk is an ancient tradition in central Asia, like koumiss or airag, a fermented mares milk very popular in Asia and Russia; but there are also traditional variants made from donkey milk. In Mongolia, where koumiss is the national drink, people have a saying that ‘kumys cures 40 diseases’. It is said that Cleopatra, Queen of Ancient Egypt, took baths in
Reign of Cleopatra golden age led by the queen. In an account of Lucius Munatius Plancus, preserved in Horace's "Satires", Cleopatra was said to have made a bet that she could spend 2.5 million drachmas in a single evening. She proved it by removing a pearl, one of the most expensive known, from one of her earrings and dissolving it in vinegar at her dinner party. The accusation that Antony had stolen the books of the Library of Pergamon to restock the Library of Alexandria, however, was an admitted fabrication by Gaius Calvisius Sabinus. He may have been the source of many other