preference seems generally to have been given to the metal which they happened first to make use of as the instrument of commerce. Having once begun to use it as their standard, which they must have done when they had no other money, they have generally continued to do so even when the necessity was not the same.
The Romans are said to have had nothing but copper money till within five years before the first Punic war,[1] when they first began to coin silver. Copper, therefore, appears to have continued always the measure of value in that republic. At Rome all accounts appear to have been kept, and the value of all estates to have been computed, either in Asses or in Sestertii. The As was always the denomination of a copper coin. The word Sestertius signifies two Asses and a half. Though the Sestertius, therefore, was originally a silver coin, its value was estimated in copper. At Rome, one who owed a great deal of money was said to have a great deal of other people's copper.
The northern nations who established themselves upon the ruins of the Roman Empire, seem to have had silver money from the first beginning of their settlements, and not to have known either gold or copper coins for several ages thereafter. There were silver coins in England in the time of the Saxons; but there was little gold coined till the time of Edward III. nor any copper till that of James I. of Great Britain. In England, therefore, and for the same reason, I believe, in all other modern nations of Europe, all accounts are kept, and the value of all goods and of all estates is generally computed in silver; and when we mean to express the amount of a person's fortune, we sel-
- ↑ Pliny, lib. xxxiii., c. 3.
