The mad sallies of Caligula, in which he menaced Britain with an invasion, served only to expose himself and the empire to ridicule; and the Britons had now, during almost a century, enjoyed their liberty unmolested, when the Romans, in the reign of Claudius, began to think seriously of reducing them under their dominion. Without seeking any more justifiable reasons of hostility than were employed by the late Europeans in subjecting the Africans and Americans, they sent over an army, [A. D. 43,] under the command of Plautius, an able general, who gained some victories, and made a considerable progress in subduing the inhabitants. Claudius himself, finding matters sufficiently prepared for his reception, made a journey into Britain, and received the submission of several British states, the Cantii, Atrebates, Regni, and Trinobantes, who inhabited the south-east parts of the island, and whom their possessions and more cultivated manner of life rendered willing to purchase peace at the expense of their liberty. The other Britons, under the command of Caractacus, still maintained an obstinate resistance, and the Romans made little progress against them; till Ostorius Scapula was sent over to command their armies. [A. D. 50.] This general advanced the Roman conquests over the Britons; pierced into the country of the Silures, a warlike nation, who inhabited the banks of the Severn; defeated Caractacus in a great battle; took him prisoner, and sent him to Rome, where his magnanimous behavior procured him better treatment than those conquerors usually bestowed on captive princes.[*] [* Tacit. Ann lib. xii.]