Persia conquered Lydia, which is credited with the important invention of coinage. The coins first issued by the Lydians were of electrum, an alloy of gold and silver. King Croesus later issued coins of pure gold and pure silver. Directly east of Syria was Phrygia. It was in Phrygia that the flute, the first real musical instrument, is supposed to have been invented, in about the sixteenth century B. C. * * * * * The brief résumé just given of the inventions made in prehistoric times, and also in historic times in China, Egypt and western Asia, shows that before Greece had attained any civilization whatever the most important inventions for the betterment of mankind had been already made. These inventions were not only mechanical appliances and such arts as spinning, weaving, pottery making, etc., that were intended for safety and material benefit generally; for they included systems of government and codes of laws and even religions that aimed to elevate man, and that did elevate him mentally, morally and spiritually. At the present day, when inventions follow each other with such rapidity that even students and experts cannot keep themselves informed about them, except in certain specialties, it is natural for us to feel that no inventing of any consequence was ever done before. In fact, the present age is called "The Age of Invention." Yet all the inventions of the last century added together have not had so great influence on mankind as the invention of writing, or of the bow and arrow, or the wheel--or almost any of the inventions we have noted. Not only are they not so important,--they were not so novel, they did not constitute steps so long, they did not mark such epochs, and probably resulted from less brilliant pictures on the mind. Can anyone think that the telephone was as novel or as important as the wheel? Can anyone suppose that the steam engine, or the electric telegraph, or the powder-gun took us as long a step upward to civilization as did papyrus? Will anyone declare that the railroad ushered in as great an epoch as the sailing ship? Is it probable that the first conception of the phonograph made quite so startling a picture on the accustomed brain of the habitual inventor as that of the art of making fire did on the virgin mentality of the savage?