Monday, the 13th [May 1850] —In the work to which I have just alluded, "Civil and Ecclesiastical History, philosophically considered with reference to the Re-union of Christians," I was compelled, that I might more fully understand the origin of persecution in the Christian Church, to study the Theodosian Code.[…]  This code was embodied in the laws of Justinian; and it was at Amalfi that the Pandects of Justinian were said to have been found by the Pisans; there the mariner's compass was discovered; and there the first maritime laws were compiled. These circumstances, with the lovely scenery along the coast, and the reported magnificence of the Cathedral, induced me to go to Amalfi, from Salerno, by boat. The Neapolitan or Salernitan crew sang some of their most beautiful sea-songs, carried the boat into two or three of the singular grottoes under the cliffs, and brought us safely, enchanted with all we saw and heard, to Amalfi.