This was accordingly done; and, instead of kings, consuls were appointed to wield the supreme power. These consuls were elected annually at the comitia centuriata and they had sovereign power granted them by a vote of the comitia curiata. The first consuls chosen were Lucius Junius Brutus and Lucius Tarquinius Collatinus.
What is known as the Secession to the Sacred Hill took place when the plebeians of Rome, in the early days of the Republic, indignant at the oppression and cruelty of the patricians, left the city en masse and gathered with hostile manifestations at a hill, Mons Sacer, some distance from Rome. It was here Menenius Agrippa conciliated them by reciting the famous fable of "The Belly and the Members." After this the people were induced to come to terms with the patricians and to return to the city.
The people had, however, gained a great advantage by their bold defiance of the consular and patrician class, who had practically been supreme in the state, had been oppressive money-lenders, and had controlled the decisions of the law courts. It was not in vain that the people now demanded that as the two consuls were practically elected to further the interests of the upper class, so they, the plebeians, should have the election of two tribunes to protect them from wrong and oppression. These new officers were duly appointed, and eventually their number was increased to ten. Their power was almost absolute, but it never seems to have been abused, and this fact is a proof of the native moderation of the ancient Romans. There have been many constitutional struggles in the history of modern times, but nothing like the plebeian tribunate has ever appeared, and it is a question if the institution could have existed for a month, in any country of modern times, with the salutary influences which it exercised in early Rome.
Tarquin had made himself king by the aid of the patricians, and chiefly by means of the third or Lucerian tribe, to which his family belonged. The burgesses of the Gentes were indignant at the curtailment of their privileges by the popular reforms of Servius, and were glad to lend themselves to any overthrow of his power. But Tarquin soon kicked away the ladder by which he had risen. He abrogated, it is true, the hated Assembly of the Centuries; but neither did he pay any heed to the Curiate Assembly, nor did he allow any new members to be chosen into the senate in place of those who were removed by death or other causes; so that even those who had helped him to the throne repented them of their deed. The name of Superbus, or the Proud, testifies to the general feeling against the despotic rule of the second Tarquin.
It was by foreign alliances that he calculated on supporting his despotism at home. The Etruscans of Tarquinii, and all its associate cities, were his friends; and among the Latins also he sought to raise a power which might counterbalance the senate and people of Rome.
The wisdom of Tarquinius Priscus and Servius had united all the Latin name to Rome, so that Rome had become the sovereign city of Latium. The last Tarquin drew those ties still closer. He gave his daughter in marriage to Octavius Mamilius, chief of Tusculum, and favored the Latins in all things. But at a general assembly of the Latins at the Ferentine Grove, beneath the Alban Mount, where they had been accustomed to meet of olden time to settle their national affairs, Turnus Herdonius of Aricia rose and spoke against him. Then Tarquinius accused him of high treason, and brought false witnesses against him; and so powerful with the Latins was the king that they condemned their countryman to be drowned in the Ferentine water, and obeyed Tarquinius in all things.
With them he made war upon the Volscians and took the city of Suessa, wherein was a great booty. This booty he applied to the execution of great works in the city, in emulation of his father and King Servius. The elder Tarquin had built up the side of the Tarpeian rock and levelled the summit, to be the foundation of a temple of Jupiter, but he had not completed the work. Tarquinius Superbus now removed all the temples and shrines of the old Sabine gods which had been there since the time of Titus Tatius; but the goddess of Youth and the god Terminus kept their place, whereby was signified that the Roman people should enjoy undecaying vigor, and that the boundaries of their empire should never be drawn in. And on the Tarpeian height he built a magnificent temple, to be dedicated jointly to the great gods of the Latins and Etruscans, Jupiter, Juno, and Minerva; and this part of the Saturnian Hill was ever after called the Capitol or the Chief Place, while the upper part was called the Arx or Citadel.
He brought architects from Etruria to plan the temple, but he forced the Roman people to work for him without hire.
One day a strange woman appeared before the king and offered him nine books to buy; and when he refused them she went away and burned, three of the nine books and brought back the remaining six and offered to sell them at the same price that she had asked for the nine; and when he laughed at her and again refused, she went as before and burned three more books, and came back and asked still the same price for the three that were left. Then the king was struck by her pertinacity, and he consulted his augurs what this might be; and they bade him by all means buy the three, and said he had done wrong not to buy the nine, for these were the books of the Sibyl and contained great secrets. So the books were kept underground in the Capitol in a stone chest, and two men (duumviri) were appointed to take charge of them, and consult them when the state was in danger.
The only Latin town that defied Tarquin's power was Gabii; and Sextus, the king's youngest son, promised to win this place also for his father. So he fled from Rome and presented himself at Gabii; and there he made complaints of his father's tyranny and prayed for protection. The Gabians believed him, and took him into their city, and they trusted him, so that in time he was made commander of their army. Now his father suffered him to conquer in many small battles, and the Gabians trusted him more and more. Then he sent privately to his father, and asked what he should do to make the Gabians submit. Then King Tarquin gave no answer to the messenger, but, as he walked up and down his garden, he kept cutting off the heads of the tallest poppies with his staff. At last the messenger was tired, and went back to Sextus and told him what had passed. But Sextus understood what his father meant, and he began to accuse falsely all the chief men, and some of them he put to death and some he banished. So at last the city of Gabii was left defenceless, and Sextus delivered it up to his father.