These signs were witnessed before the opening of the nineteenth century. In fulfilment of this prophecy there occurred, in the year 1755, the most terrible earthquake that has ever been recorded. Though commonly known as the earthquake of Lisbon, it extended to the greater part of Europe, Africa, and America. It was felt in Greenland, in the West Indies, in the island of Madeira, in Norway and Sweden, Great Britain and Ireland. It pervaded an extent of not less than four million square miles. In Africa the shock was almost as severe as in Europe. A great part of Algiers was destroyed; and a short distance from Morocco, a village containing eight or ten thousand inhabitants was swallowed up. A vast wave swept over the coast of Spain and Africa, engulfing cities, and causing great destruction. It was in Spain and Portugal that the shock manifested its extreme violence. At Cadiz the inflowing wave was said to be sixty feet high. Mountains, “some of the largest in Portugal, were impetuously shaken, as it were, from their very foundations; and some of them opened at their summits, which were split and rent in a wonderful manner, huge masses of them being thrown down into the adjacent valleys. Flames are related to have issued from these mountains.”(480) At Lisbon “a sound of thunder was heard underground, and immediately afterward a violent shock threw down the greater part of that city. In the course of about six minutes, sixty thousand persons perished. The sea first retired, and laid the bar dry; it then rolled in, rising fifty feet or more above its ordinary level.” “Among other extraordinary events related to have occurred at Lisbon during the catastrophe, was the subsidence of a new quay, built entirely of marble, at an immense expense. A great concourse of people had collected there for safety, as a spot where they might be beyond the reach of falling ruins; but suddenly the quay sank down with all the people on it, and not one of the dead bodies ever floated to the surface.”(481)