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Under a prince of such a disposition, the government of the empire could not but be conducted with the strictest regard to the public welfare. The reform, which was begun in the late reign, he prosecuted with the most ardent application; and, had he lived for a longer time, it is probable that his authority and example would have produced the most beneficial effects upon the manners of the Romans.
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During the reign of this emperor, in the seventy-ninth year of the Christian era, happened the first eruption of Mount Vesuvius, which has ever since been celebrated for its volcano. Before this time, Vesuvius is spoken of, by ancient writers, as being covered with orchards and vineyards, and of which the middle was dry and barren. The eruption was accompanied by an earthquake, which destroyed several cities of Campania, particularly Pompeii and Herculaneum; while the lava, pouring down the mountain in torrents, overwhelmed, in various directions, the adjacent plains. The burning ashes were covered not only over the neighbouring country, but as far as the shores of Egypt, Libya, and even Syria. Amongst those to whom this dreadful eruption proved fatal, was Pliny, the celebrated naturalist, whose curiosity to examine the phenomenon led him so far within the verge of danger, that he could not afterwards escape.
