A long list of dynasties is relieved with many an excellent story, notably the very famous account of how Rhampsonitis lost his treasures and failed to find the robber until he offered him a free pardon; having found him he said the Egyptians excelled all the world in wisdom, and the robber all the Egyptians. The Pyramids are described; transmigration is discussed and emphasis is laid upon the growing popularity of Greek mercenaries. The book closes with the brilliant reign of Amasis, who made overtures to the Greek oracles, allied himself with Samos and permitted the foundation of an important Greek colony at Naucratis.

The third book opens with the invasion of Egypt by Cambyses in 525 on account of an insult offered him by Amasis. A Greek mercenary named Phanes gave the Persians information of the one means of attacking through the desert. After a fierce battle at Pelusium Egypt was beaten; for years afterwards skulls of both armies lay around, the Persian heads being easily broken by a pebble, the Egyptian scarcely breakable by stones. In victory Cambyses outraged Psammenitus, the defeated King; a fruitless expedition against Ethiopia and the Ammonians followed. The Egyptians were stirred by the arrival of their calf-god Apis; Cambyses mockingly wounded him and was punished with madness, slaying his own kindred and committing deeds of impiety.

At that time Egypt was leagued with the powerful island of Samos, ruled by Polycrates, a tyrant of marvellous good fortune. Suspecting some coming disaster to balance it, Amasis urged him to sacrifice his dearest possession to avert the evil eye. Polycrates threw his ring into the sea; it was retrieved by a fisherman. On hearing this, Amasis severed his alliance.

In the absence of Cambyses two Magi brothers stirred up revolt in Susa, one pretending to be Smerdis, the murdered brother of Cambyses. That monarch wounded himself in the thigh as he mounted his horse. The wound festered and caused speedy death. Meanwhile the false Smerdis held the sovereignty. He was suspected by Otanes, a noble whose daughter Phaedymé was married to him. At great personal risk she discovered that the King was without ears, a manifest proof that he was a Magian. Otane thens joined with six other conspirators to put the usurper down. Darius, son of Hystaspes, warned them that their numbers were too large for secrecy, advising immediate action. The two pretenders had meanwhile persuaded Prexaspes, a confidant of Cambyses, to assure the Persians that Smerdis really ruled. Prexaspes told the truth and then threw himself to death from the city walls. This news forced the conspirators' hands; rushing into the palace, they were luckily able to slay the usurpers.

The next question was, who should reign? Herodotus turned these Persians into Greeks, making them discuss the comparative merits of monarchy, oligarchy and democracy. They decided that their horses should choose the next king; he whose steed should first neigh should rule. Darius had a cunning groom named Oebares; that evening he took the horse and his mare into the market-place; next morning on reaching the same spot the horse did not fail to seat his master on the throne in 521. A review of the Persian Empire follows, with a description of India and Arabia.

Polycrates did not long survive. He was the first Greek to conceive the idea of a maritime empire. He was foully murdered by the Persian Oroetes, who decoyed him to the mainland by an offer of treasure and then crucified him. In the retinue of Polycrates was a physician, Democedes of Croton, who was captured by Oroetes. His fame spread to Susa at a time when no court doctor could treat Darius' sprained foot. Democedes was sent for and effected the cure; later he healed the Queen Atossa of a boil. Instructed by him she advised Darius to send a commission of fifteen Persians to spy out the Greek mainland under Democedes' guidance. After an exciting series of adventures the physician succeeded in returning to his native city. But the idea of an invasion of Greece had settled on Darius' mind. First, however, he took Samos, giving it to Syloson, Polycrates' brother who years before in Egypt had made him a present of a scarlet cloak while he was a mere guardsman. Darius consolidated his power in Asia by the capture of the revolted province of Babylon through the self-sacrifice of Zopyrus, son of one of the seven conspirators. The vivid story of his devotion is one of the very greatest things in Herodotus.

Persia being thus mistress of all Asia, of Samos and the seaboard, began to dream of subduing Greece itself. But first Darius determined to conquer his non-Greek neighbours. The fourth book describes the attack which Darius himself led against the Scythians in revenge for the twenty-eight years' slavery they inflicted on the Medes. A description of Scythia is relieved by an account of the circumnavigation of Africa by the Phoenicians and the voyage of Scylax down the Indus and along the coast of Africa to Egypt.

The war on the Scyths was dramatic and exciting, both sides acting in the spirit of chivalry. Crossing the Bosporus, Darius advanced through Thrace to the Danube which he spanned with a bridge. The Scyths adopted the favourite Russian plan of retreating into the interior, destroying the crops and hovering round the foe; they further led the Persians into the territories of their own enemies. This process at last wearied Darius; he sent a herald to challenge them to a straight contest or to become his vassals. The reply came that if Darius wished a conflict he had better outrage their ancestral tombs; as for slavery, they acknowledged only Zeus as their master. But the threat of slavery did its work. A detachment was sent to the Danube to induce the Ionian Greeks to strike for freedom by breaking down the bridge they were guarding, thus cutting off Darius' retreat. To the King himself a Scythian herald brought a present of a bird, a mouse, a frog and five arrows, implying that unless his army became one of the creatures it would perish by the arrows. The Scyths adopted guerilla tactics, leaving the Persians no rest by night and offering no battle by day. At last Darius began his retreat. One division of the Scythian horsemen reached the bridge before their foes, again asking the Ionians to destroy it. The Greeks pretended to consent, breaking down the Scythian end of it. Darius at last came to the place; to his dismay he found the bridge demolished. He bade an Egyptian Stentor summon Histiaeus, the Greek commandant, who brought up the fleet and saved the Persian host which retired into Asia.

In 509 a second expedition was dispatched against Barca, a colony of Cyrene. The history of the latter is graphically described, the first king being Battus, the Stammerer, who founded it in obedience to the directions of Apollo. Cyrene was brought under Cambyses' sway by Arcesilaus who had been banished. He misinterpreted an oracle and cruelly killed his enemies in Barca. When he was assassinated in that town his mother Pheretima fled from the metropolis Cyrene to Aryandes, the Persian governor in Egypt. Backed by armed force she besieged Barca which resisted bravely for nine months; at the end of that term an agreement was made that Barca should pay tribute and remain unassailed as long as the ground remained firm on which the treaty was made. But the Persians had undermined the spot, covering planks of wood with a loose layer of earth. Breaking down the planks they rushed in and took the town, Pheretima exacting a horrible vengeance. Yet she herself died soon after, eaten of worms. "Thus," remarks the historian, "do men, by too severe vengeances, draw upon their own heads the divine wrath."

The fifth book begins the concentration on purely Greek history. Darius had left Megabazus in command in Europe, retiring himself to Sardis. In that city he was much struck by the appearance of a Paeonian woman and ordered Megabazus to invade the country. He subdued it and Macedonia in 506-4, but in the process some of his commanders were punished for an insult to Macedonian women, revenge being taken by Alexander, son of King Amyntas; a bride shut the lips of a party sent to discover their fate. In Thrace, Megabazus began to suspect Histiaeus, the Ionian who had saved Darius and in return had been given a strong town, Myrcinus on the River Strymon. The King by a trick drew Histiaeus to Sardis and took him to the Capital, leaving his brother Artaphernes as governor in Sardis. But Histiaeus had been succeeded in Miletus by his nephew Aristagoras; to him in 502 came certain nobles from Naxos, one of the Cyclades isles, begging restoration from banishment. He decided to apply to Artaphernes for Persian help; this the viceroy willingly gave as it would further the Persian progress to the objective, the Greek mainland, across the Aegean in a direct line. The Persian admiral Megabates soon quarrelled with Aristagoras about the command and informed the Naxians of the coming attack. The expedition thus failed. Aristagoras, afraid to face Artaphemes whose treasure he had wasted, decided on raising a revolt of the whole of Ionia; at that very moment a slave came to him from his uncle in Susa with a message tattooed on his head, bidding him rebel.