the age of forty. The year commonly assigned to Euripides' birth is a good instance of ancient method in these things. The system of chronology was badly confused. In the first place there was no generally accepted era from which to date; and even if there had been, the numerical system, before the invention of Arabic ciphers, was as confused as English spelling is at the present day, and made it hard to do the simplest sums. So the ordinary educational plan was to group events together in some scheme that might not be quite exact but was calculated to have some symbolic interest and to stay in the memory. For instance, the three great tragedians were grouped together round the Battle of Salamis, the great triumph of the Persian Wars in 480 B.C. Aeschylus fought among the heavy-armed infantry, Sophocles danced in a choir of boys to celebrate the victory, and Euripides was born in Salamis on the day of the battle. We do not know the origin of this pleasant fable; but we have another date given in a very ancient chronicle called the Parian Marble, which was found in the island of Paros in the seventeenth century and was composed in the year 264 B.C. It puts the birth of Euripides in 484 B.C., and since we