The following spring, however, after shipwreck and divers perils and manifold fatigues, Paul arrived at Rome, in the year 61 A.D., in the seventh year of the Emperor Nero. Here the centurion handed Paul over to the prefect of the praetorian guards, by whom he was subjected to a merely nominal custody, although, according to Roman custom, he was chained to a soldier. But he was treated with great lenity, was allowed to have lodgings, to receive his friends freely, and to hold Christian meetings in his own house; and no one molested him. For two years Paul remained at Rome, a fettered prisoner it is true, but cheered by friendly visits, and attended by Luke, his "beloved physician" and biographer, by Timothy and other devoted disciples. During this second imprisonment Paul could see very little outside the praetorian barracks, but his friends brought him the news, and he had ample time to write letters. He had no intercourse with gifted and fortunate Romans; his acquaintance was probably confined to the praetorian soldiers, and some of the humbler classes who sought Christian instruction. But from this period we date many of his epistles, on which his fame and influence largely rest as a theologian and man of genius. Among those which he wrote from Rome were the Epistles to the Colossians, the Ephesians, and many pastoral letters like those written to Philemon, Titus, and Timothy. We know but little of the life of Paul after his arrival at Rome, for at this point Saint Luke closes his narrative, and all after this is conjecture and tradition.[4] But the main part of Paul's work was accomplished when he was first sent to Rome as a prisoner to be tried in the imperial courts; and there is but little doubt that he finally met the death he so heroically contemplated, at the hands of the monster Nero, who martyred such a vast multitude of Paul's fellow-Christians. [Footnote 4: There has been much doubt as to whether Paul was martyred during the three years of this imprisonment, or whether he was acquitted, left Rome, visited his beloved churches in Macedonia and Asia Minor, went to preach the gospel in Spain, and was again arrested, taken to Rome, and there beheaded. The earliest authorities seem to have been agreed upon the second hypothesis; and this is based chiefly upon a statement made by Paul's disciple Clement to the effect that the apostle had preached in "the extremity of the West" (an expression of Roman writers to denote Spain), and also on the impossibility of placing certain facts mentioned in the second letter to Timothy and the one to Titus in the period of the first imprisonment. He was certainly tried, defended himself, and he may have been at first acquitted.]