DOC 2 -- Tacitus, Annals

...Prasutagus, king of the Iceni, famed for his long prosperity, had made the emperor his heir along with his two daughters, under the impression that this token of submission would put his kingdom and his house out of the reach of wrong. But the reverse was the result, so much so that his kingdom was plundered by centurions, his house by slaves, as if they were the spoils of war. First, his wife Boudicea was scourged, and his daughters outraged [i.e., raped]. All the chief men of the Iceni, as if Rome had received the whole country as a gift, were stripped of their ancestral possessions, and the king's relatives were made slaves. Roused by these insults and the dread of worse, reduced as they now were into the condition of a province, they flew to arms and stirred to revolt the Trinobantes and others who, not yet cowed by slavery, had agreed in secret conspiracy to reclaim their freedom. It was against the veterans that their hatred was most intense. For these new settlers in the colony of Camulodunum drove people out of their houses, ejected them from their farms, called them captives and slaves, and the lawlessness of the veterans was encouraged by the soldiers, who lived a similar life and hoped for similar licence. A temple also erected to the Divine Claudius was ever before their eyes, a citadel, as it seemed, of perpetual tyranny. Men chosen as priests had to squander their whole fortunes under the pretence of a religious ceremonial. It appeared too no difficult matter to destroy the colony, undefended as it was by fortifications, a precaution neglected by our generals, while they thought more of what was agreeable than of what was expedient.
 

Meanwhile, without any evident cause, the statue of Victory at Camulodunum fell prostrate and turned its back to the enemy, as though it fled before them. Women excited to frenzy prophesied impending destruction; ravings in a strange tongue, it was said, were heard in their Senate-house; their theatre resounded with wailings, and in the estuary of the Tamesa had been seen the appearance of an overthrown town; even the ocean had worn the aspect of blood, and, when the tide ebbed, there had been left the likenesses of human forms, marvels interpreted by the Britons, as hopeful, by the veterans, as alarming. But as Suetonius [the Roman governor of Britain] was far away, they implored aid from the procurator, Catus Decianus. All he did was to send two hundred men, and no more, without regular arms, and there was in the place but a small military force. Trusting to the protection of the temple, hindered too by secret accomplices in the revolt, who embarrassed their plans, they had constructed neither fosse nor rampart; nor had they removed their old men and women, leaving their youth alone to face the foe. Surprised, as it were, in the midst of peace, they were surrounded by an immense host of the barbarians. All else was plundered or fired in the onslaught; the temple where the soldiers had assembled, was stormed after a two days' siege. The victorious enemy met Petilius Cerialis, commander of the ninth legion, as he was coming to the rescue, routed his troops, and destroyed all his infantry. Cerialis escaped with some cavalry into the camp, and was saved by its fortifications. Alarmed by this disaster and by the fury of the province which he had goaded into war by his rapacity, the procurator Catus crossed over into Gaul.

Suetonius, however, with wonderful resolution, marched amidst a hostile population to Londinium, which, though undistinguished by the name of a colony, was much frequented by a number of merchants and trading vessels. Uncertain whether he should choose it as a seat of war, as he looked round on his scanty force of soldiers, and remembered with what a serious warning the rashness of Petilius had been punished, he resolved to save the province at the cost of a single town. Nor did the tears and weeping of the people, as they implored his aid, deter him from giving the signal of departure and receiving into his army all who would go with him. Those who were chained to the spot by the weakness of their sex, or the infirmity of age, or the attractions of the place, were cut off by the enemy. Like ruin fell on the town of Verulamium, for the barbarians, who delighted in plunder and were indifferent to all else, passed by the fortresses with military garrisons, and attacked whatever offered most wealth to the spoiler, and was unsafe for defence. About seventy thousand citizens and allies, it appeared, fell in the places which I have mentioned. For it was not on making prisoners and selling them, or on any of the barter of war, that the enemy was bent, but on slaughter, on the gibbet, the fire and the cross, like men soon about to pay the penalty, and meanwhile snatching at instant vengeance.

Suetonius had the fourteenth legion with the veterans of the twentieth, and auxiliaries from the neighbourhood, to the number of about ten thousand armed men, when the prepared to break off delay and fight a battle. ...His legions were in close array; round them, the light-armed troops, and the cavalry in dense array on the wings. On the other side, the army of the Britons, with its masses of infantry and cavalry, was confidently exulting, a vaster host than ever had assembled, and so fierce in spirit that they actually brought with them, to witness the victory, their wives riding in waggons, which they had placed on the extreme border of the plain.

Boudicea, with her daughters before her in a chariot, went up to tribe after tribe, protesting that it was indeed usual for Britons to fight under the leadership of women. "But now," she said, "it is not as a woman descended from noble ancestry, but as one of the people that I am avenging lost freedom, my scourged body, the outraged chastity of my daughters. Roman lust has gone so far that not our very persons, nor even age or virginity, are left unpolluted. But heaven is on the side of a righteous vengeance; a legion which dared to fight has perished; the rest are hiding themselves in their camp, or are thinking anxiously of flight. They will not sustain even the din and the shout of so many thousands, much less our charge and our blows. If you weigh well the strength of the armies, and the causes of the war, you will see that in this battle you must conquer or die. This is a woman's resolve; as for men, they may live and be slaves."

Nor was Suetonius silent at such a crisis. Though he confided in the valour of his men, he yet mingled encouragements and entreaties to disdain the clamours and empty threats of the barbarians. "There," he said, "you see more women than warriors. Unwarlike, unarmed, they will give way the moment they have recognised that sword and that courage of their conquerors, which have so often routed them. Even among many legions, it is a few who really decide the battle, and it will enhance their glory that a small force should earn the renown of an entire army. Only close up the ranks, and having discharged your javelins, then with shields and swords continue the work of bloodshed and destruction, without a thought of plunder. When once the victory has been won, everything will be in your power."

Such was the enthusiasm which followed the general's address, and so promptly did the veteran soldiery, with their long experience of battles, prepare for the hurling of the javelins, that it was with confidence in the result that Suetonius gave the signal of battle.

At first, the legion kept its position, ... when they had exhausted their missiles, which they discharged with unerring aim on the closely approaching foe, they rushed out in a wedge-like column. Similar was the onset of the auxiliaries, while the cavalry with extended lances broke through all who offered a strong resistance. The rest turned their back in flight, and flight proved difficult, because the surrounding waggons had blocked retreat. Our soldiers spared not to slay even the women, while the very beasts of burden, transfixed by the missiles, swelled the piles of bodies. Great glory, equal to that of our old victories, was won on that day. Some indeed say that there fell little less than eighty thousand of the Britons, with a loss to our soldiers of about four hundred, and only as many wounded. Boudicea put an end to her life by poison...

The whole army was then brought together and kept under canvas to finish the remainder of the war. The emperor strengthened the forces by sending from Germany two thousand legionaries, eight cohorts of auxiliaries, and a thousand cavalry. On their arrival the men of the ninth had their number made up with legionary soldiers. The allied infantry and cavalry were placed in new winter quarters, and whatever tribes still wavered or were hostile were ravaged with fire and sword...

[Source: http://www.fordham.edu/halsall/ancient/asbook.html]