Learn this A B C thoroughly, and mark, for yourselves, what you, at present, think the vital events in each century. As you know more, you will think other events the vital ones; but the best historical knowledge only approximates to true thought in that matter; only be sure that what is truly vital in the character which governs events, is always expressed by the art of the century; so that if you could interpret that art rightly, the better part of your task in reading history would be done to your hand. 117. It is generally impossible to date with precision art of the archaic period--often difficult to date even that of the central three hundred years. I will not weary you with futile minor divisions of time; here are three coins (Plate VII.) roughly, but decisively, characteristic of the three ages. The first is an early coin of Tarentum. The city was founded, as you know, by the Spartan Phalanthus, late in the eighth century. I believe the head is meant for that of Apollo Archegetes; it may however be Taras, the son of Poseidon; it is no matter to us at present whom it is meant for, but the fact that we cannot know, is itself of the greatest import. We cannot say, with any certainty, unless by discovery of some collateral evidence, whether this head is intended for that of a god, or demigod, or a mortal warrior. Ought not that to disturb some of your thoughts respecting Greek idealism? Farther, if by investigation we discover that the head is meant for that of Phalanthus, we shall know nothing of the character of Phalanthus from the face; for there is no portraiture at this early time. 118. The second coin is of AEnus in Macedonia; probably of the fifth or early fourth century, and entirely characteristic of the central period. This we know to represent the face of a god--Hermes. The third coin is a king's, not a city's. I will not tell you, at this moment, what king's; but only that it is a late coin of the third period, and that it is as distinct in purpose as the coin of Tarentum is obscure. We know of this coin, that it represents no god nor demigod, but a mere mortal; and we know precisely, from the portrait, what that mortal's face was like. [Illustration: VII. ARCHAIC, CENTRAL AND DECLINING ART OF GREECE.]